diff --git a/README.md b/README.md
index 5b5f6e3..2b5d0c3 100644
--- a/README.md
+++ b/README.md
@@ -42,9 +42,11 @@ $exporter = Exporter::create(Exporter::TYPE_XML);
 
 $item = $exporter->createItem('123');
 
-$price = new Price();
-$price->setValue('13.37');
-$item->setPrice($price);
+$item->addPrice(13.37);
+// Alternative long form:
+// $price = new Price();
+// $price->setValue(13.37);
+// $item->setPrice($price);
 
 $xmlOutput = $exporter->serializeItems([$item], 0, 1, 1);
 ```
@@ -59,4 +61,4 @@ If you want to contribute to this project, feel free to fork the repository. Aft
 
 Tests should be provided if possible.
 
-Running `php-cs-fixer` before commiting will reduce style-caused build failures.
\ No newline at end of file
+Running `php-cs-fixer` before commiting will reduce style-caused build failures.
diff --git a/examples/XmlExample.php b/examples/XmlExample.php
index 271c846..4e918a9 100644
--- a/examples/XmlExample.php
+++ b/examples/XmlExample.php
@@ -1,23 +1,15 @@
 <?php
 
-require_once '../vendor/autoload.php';
-
-use \FINDOLOGIC\Export\Exporter;
-use \FINDOLOGIC\Export\Data\Ordernumber;
-use \FINDOLOGIC\Export\Data\Name;
-use \FINDOLOGIC\Export\Data\Summary;
-use \FINDOLOGIC\Export\Data\Description;
-use \FINDOLOGIC\Export\Data\Price;
-use \FINDOLOGIC\Export\Data\Url;
-use \FINDOLOGIC\Export\Data\Image;
-use \FINDOLOGIC\Export\Data\Attribute;
-use \FINDOLOGIC\Export\Data\Keyword;
-use \FINDOLOGIC\Export\Data\Usergroup;
-use \FINDOLOGIC\Export\Data\Bonus;
-use \FINDOLOGIC\Export\Data\SalesFrequency;
-use \FINDOLOGIC\Export\Data\DateAdded;
-use \FINDOLOGIC\Export\Data\Sort;
-use \FINDOLOGIC\Export\Data\Property;
+require_once __DIR__ . '/../vendor/autoload.php';
+
+use FINDOLOGIC\Export\Data\Item;
+use FINDOLOGIC\Export\Exporter;
+use FINDOLOGIC\Export\Data\Ordernumber;
+use FINDOLOGIC\Export\Data\Image;
+use FINDOLOGIC\Export\Data\Attribute;
+use FINDOLOGIC\Export\Data\Keyword;
+use FINDOLOGIC\Export\Data\Usergroup;
+use FINDOLOGIC\Export\Data\Property;
 
 /**
  * This example class builds a xml export based on the example of the FINDOLOGIC documentation, which can be found
@@ -59,7 +51,7 @@ public function createExport()
         return $exporter->serializeItems($itemsToExport, 0, 1, 1);
     }
 
-    private function addAttributes($item, $itemData)
+    private function addAttributes(Item $item, $itemData)
     {
         $attributesData = [
             'cat' => [
@@ -86,73 +78,28 @@ private function addAttributes($item, $itemData)
         }
     }
 
-    private function addBonuses($item, $itemData)
+    private function addBonuses(Item $item, $itemData)
     {
-        $bonusesData = [
-            '' => [
-                3
-            ],
-            'LNrLF7BRVJ0toQ==' => [
-                5
-            ]
-        ];
-
-        $bonusElement = new Bonus();
-
-        foreach ($bonusesData as $usergroup => $bonuses) {
-            foreach ($bonuses as $bonus) {
-                $bonusElement->setValue($bonus, $usergroup);
-            }
-        }
-
-        $item->setBonus($bonusElement);
+        $item->addBonus(3);
+        $item->addBonus(5, 'LNrLF7BRVJ0toQ==');
     }
 
-    private function addDateAddeds($item, $itemData)
+    private function addDateAddeds(Item $item, $itemData)
     {
-        $dateAddedsData = [
-            '' => [
-                new \DateTime()
-            ],
-            'LNrLF7BRVJ0toQ==' => [
-                new \DateTime()
-            ]
-        ];
-
-        $dateAddedElement = new DateAdded();
-
-        foreach ($dateAddedsData as $usergroup => $dateAddeds) {
-            foreach ($dateAddeds as $dateAdded) {
-                $dateAddedElement->setDateValue($dateAdded, $usergroup);
-            }
-        }
-
-        $item->setDateAdded($dateAddedElement);
+        $item->addDateAdded(new \DateTime());
+        $item->addDateAdded(new \DateTime(), 'LNrLF7BRVJ0toQ==');
     }
 
-    private function addDescriptions($item, $itemData)
+    private function addDescriptions(Item $item, $itemData)
     {
-        $descriptionsData = [
-            '' => [
-                'With this sneaker you will walk in style. It\'s available in green and blue.'
-            ],
-            'LNrLF7BRVJ0toQ==' => [
-                'With this men\'s sneaker you will walk in style. It\'s comes in various sizes and colors.'
-            ]
-        ];
-
-        $descriptionElement = new Description();
-
-        foreach ($descriptionsData as $usergroup => $descriptions) {
-            foreach ($descriptions as $description) {
-                $descriptionElement->setValue($description, $usergroup);
-            }
-        }
-
-        $item->setDescription($descriptionElement);
+        $item->addDescription('With this sneaker you will walk in style. It\'s available in green and blue.');
+        $item->addDescription(
+            'With this men\'s sneaker you will walk in style. It\'s comes in various sizes and colors.',
+            'LNrLF7BRVJ0toQ=='
+        );
     }
 
-    private function addOrdernumbers($item, $itemData)
+    private function addOrdernumbers(Item $item, $itemData)
     {
         $ordernumbersData = [
             '' => [
@@ -171,7 +118,7 @@ private function addOrdernumbers($item, $itemData)
         }
     }
 
-    private function addImages($item, $itemData)
+    private function addImages(Item $item, $itemData)
     {
         $imagesData = [
             '' => [
@@ -191,7 +138,7 @@ private function addImages($item, $itemData)
         }
     }
 
-    private function addKeywords($item, $itemData)
+    private function addKeywords(Item $item, $itemData)
     {
         $keywordsData = [
             '' => [
@@ -210,51 +157,19 @@ private function addKeywords($item, $itemData)
         }
     }
 
-    private function addNames($item, $itemData)
+    private function addNames(Item $item, $itemData)
     {
-        $namesData = [
-            '' => [
-                'Adidas Sneaker'
-            ],
-            'LNrLF7BRVJ0toQ==' => [
-                'Adidas Men\'s Sneaker'
-            ]
-        ];
-
-        $nameElement = new Name();
-
-        foreach ($namesData as $usergroup => $names) {
-            foreach ($names as $name) {
-                $nameElement->setValue($name, $usergroup);
-            }
-        }
-
-        $item->setName($nameElement);
+        $item->addName('Adidas Sneaker');
+        $item->addName('Adidas Men\'s Sneaker', 'LNrLF7BRVJ0toQ==');
     }
 
-    private function addPrices($item, $itemData)
+    private function addPrices(Item $item, $itemData)
     {
-        $pricesData = [
-            '' => [
-                44.8
-            ],
-            'LNrLF7BRVJ0toQ==' => [
-                45.9
-            ]
-        ];
-
-        $priceElement = new Price();
-
-        foreach ($pricesData as $usergroup => $prices) {
-            foreach ($prices as $price) {
-                $priceElement->setValue($price, $usergroup);
-            }
-        }
-
-        $item->setPrice($priceElement);
+        $item->addPrice(44.8);
+        $item->addPrice(45.9, 'LNrLF7BRVJ0toQ==');
     }
 
-    private function addProperties($item, $itemData)
+    private function addProperties(Item $item, $itemData)
     {
         $propertiesData = [
             'sale' => [
@@ -289,95 +204,31 @@ private function addProperties($item, $itemData)
         }
     }
 
-    private function addSalesFrequencies($item, $itemData)
+    private function addSalesFrequencies(Item $item, $itemData)
     {
-        $salesFrequenciesData = [
-            '' => [
-                5
-            ],
-            'LNrLF7BRVJ0toQ==' => [
-                5
-            ]
-        ];
-
-        $salesFrequencyElement = new SalesFrequency();
-
-        foreach ($salesFrequenciesData as $usergroup => $salesFrequencies) {
-            foreach ($salesFrequencies as $salesFrequency) {
-                $salesFrequencyElement->setValue($salesFrequency, $usergroup);
-            }
-        }
-
-        $item->setSalesFrequency($salesFrequencyElement);
+        $item->addSalesFrequency(5);
+        $item->addSalesFrequency(10, 'LNrLF7BRVJ0toQ==');
     }
 
-    private function addSorts($item, $itemData)
+    private function addSorts(Item $item, $itemData)
     {
-        $sortsData = [
-            '' => [
-                5
-            ],
-            'LNrLF7BRVJ0toQ==' => [
-                7
-            ]
-        ];
-
-        $sortElement = new Sort();
-
-        foreach ($sortsData as $usergroup => $sorts) {
-            foreach ($sorts as $sort) {
-                $sortElement->setValue($sort, $usergroup);
-            }
-        }
-
-        $item->setSort($sortElement);
+        $item->addSort(5);
+        $item->addSort(7, 'LNrLF7BRVJ0toQ==');
     }
 
-    private function addSummaries($item, $itemData)
+    private function addSummaries(Item $item, $itemData)
     {
-        $summariesData = [
-            '' => [
-                'A cool and fashionable sneaker'
-            ],
-            'LNrLF7BRVJ0toQ==' => [
-                'A cool and fashionable sneaker for men'
-            ]
-        ];
-
-        $summaryElement = new Summary();
-
-        foreach ($summariesData as $usergroup => $summaries) {
-            foreach ($summaries as $summary) {
-                $summaryElement->setValue($summary, $usergroup);
-            }
-        }
-
-        $item->setSummary($summaryElement);
+        $item->addSummary('A cool and fashionable sneaker');
+        $item->addSummary('A cool and fashionable sneaker for men', 'LNrLF7BRVJ0toQ==');
     }
 
-    private function addUrls($item, $itemData)
+    private function addUrls(Item $item, $itemData)
     {
-        $urlsData = [
-            '' => [
-                'https://www.store.com/sneakers/adidas.html'
-            ],
-            'LNrLF7BRVJ0toQ==' => [
-                'https://www.store.com/sneakers/mens/adidas.html'
-            ]
-        ];
-
-        $urlElement = new Url();
-
-        foreach ($urlsData as $usergroup => $urls) {
-            foreach ($urls as $url) {
-                $urlElement->setValue($url, $usergroup);
-            }
-        }
-
-        $item->setUrl($urlElement);
+        $item->addUrl('https://www.store.com/sneakers/adidas.html');
+        $item->addUrl('https://www.store.com/sneakers/mens/adidas.html', 'LNrLF7BRVJ0toQ==');
     }
 
-    private function addUsergroups($item, $itemData)
+    private function addUsergroups(Item $item, $itemData)
     {
         $usergroups = [
             'LNrLF7BRVJ0toQ==',
diff --git a/src/FINDOLOGIC/Export/Data/DateAdded.php b/src/FINDOLOGIC/Export/Data/DateAdded.php
index 96a2842..b3c57cf 100644
--- a/src/FINDOLOGIC/Export/Data/DateAdded.php
+++ b/src/FINDOLOGIC/Export/Data/DateAdded.php
@@ -2,6 +2,7 @@
 
 namespace FINDOLOGIC\Export\Data;
 
+use DateTime;
 use FINDOLOGIC\Export\Helpers\UsergroupAwareSimpleValue;
 
 class DateAdded extends UsergroupAwareSimpleValue
@@ -16,9 +17,9 @@ public function setValue($value, $usergroup = '')
         throw new \BadMethodCallException('Assign DateAdded values by passing a \DateTime to setDateValue()');
     }
 
-    public function setDateValue(\DateTime $value, $usergroup = '')
+    public function setDateValue(DateTime $value, $usergroup = '')
     {
-        $formatted = $value->format(\DateTime::ATOM);
+        $formatted = $value->format(DateTime::ATOM);
 
         parent::setValue($formatted, $usergroup);
     }
diff --git a/src/FINDOLOGIC/Export/Data/Item.php b/src/FINDOLOGIC/Export/Data/Item.php
index 58508fc..6c62bba 100644
--- a/src/FINDOLOGIC/Export/Data/Item.php
+++ b/src/FINDOLOGIC/Export/Data/Item.php
@@ -2,6 +2,7 @@
 
 namespace FINDOLOGIC\Export\Data;
 
+use DateTime;
 use FINDOLOGIC\Export\Helpers\Serializable;
 
 abstract class Item implements Serializable
@@ -65,51 +66,145 @@ public function __construct($id)
         $this->ordernumbers = new AllOrdernumbers();
     }
 
+    public function getName()
+    {
+        return $this->name;
+    }
+
     public function setName(Name $name)
     {
         $this->name = $name;
     }
 
+    public function addName($name, $usergroup = '')
+    {
+        $this->name->setValue($name, $usergroup);
+    }
+
+    public function getSummary()
+    {
+        return $this->summary;
+    }
+
     public function setSummary(Summary $summary)
     {
         $this->summary = $summary;
     }
 
+    public function addSummary($summary, $usergroup = '')
+    {
+        $this->summary->setValue($summary, $usergroup);
+    }
+
+    public function getDescription()
+    {
+        return $this->description;
+    }
+
     public function setDescription(Description $description)
     {
         $this->description = $description;
     }
 
+    public function addDescription($description, $usergroup = '')
+    {
+        $this->description->setValue($description, $usergroup);
+    }
+
+    public function getPrice()
+    {
+        return $this->price;
+    }
+
     public function setPrice(Price $price)
     {
         $this->price = $price;
     }
 
+    public function addPrice($price, $usergroup = '')
+    {
+        if ($this->price === null) {
+            $this->price = new Price();
+        }
+
+        $this->price->setValue($price, $usergroup);
+    }
+
+    public function getUrl()
+    {
+        return $this->url;
+    }
+
     public function setUrl(Url $url)
     {
         $this->url = $url;
     }
 
+    public function addUrl($url, $usergroup = '')
+    {
+        $this->url->setValue($url, $usergroup);
+    }
+
+    public function getBonus()
+    {
+        return $this->bonus;
+    }
+
     public function setBonus(Bonus $bonus)
     {
         $this->bonus = $bonus;
     }
 
+    public function addBonus($bonus, $usergroup = '')
+    {
+        $this->bonus->setValue($bonus, $usergroup);
+    }
+
+    public function getSalesFrequency()
+    {
+        return $this->salesFrequency;
+    }
+
     public function setSalesFrequency(SalesFrequency $salesFrequency)
     {
         $this->salesFrequency = $salesFrequency;
     }
 
+    public function addSalesFrequency($salesFrequency, $usergroup = '')
+    {
+        $this->salesFrequency->setValue($salesFrequency, $usergroup);
+    }
+
+    public function getDateAdded()
+    {
+        return $this->dateAdded;
+    }
+
     public function setDateAdded(DateAdded $dateAdded)
     {
         $this->dateAdded = $dateAdded;
     }
 
+    public function addDateAdded(DateTime $dateAdded, $usergroup = '')
+    {
+        $this->dateAdded->setDateValue($dateAdded, $usergroup);
+    }
+
+    public function getSort()
+    {
+        return $this->sort;
+    }
+
     public function setSort(Sort $sort)
     {
         $this->sort = $sort;
     }
 
+    public function addSort($sort, $usergroup = '')
+    {
+        $this->sort->setValue($sort, $usergroup);
+    }
+
     public function addProperty(Property $property)
     {
         foreach ($property->getAllValues() as $usergroup => $value) {
diff --git a/tests/FINDOLOGIC/Export/Tests/XmlSerializationTest.php b/tests/FINDOLOGIC/Export/Tests/XmlSerializationTest.php
index f3125f3..d999c26 100644
--- a/tests/FINDOLOGIC/Export/Tests/XmlSerializationTest.php
+++ b/tests/FINDOLOGIC/Export/Tests/XmlSerializationTest.php
@@ -2,6 +2,7 @@
 
 namespace FINDOLOGIC\Export\Tests;
 
+use DateTime;
 use FINDOLOGIC\Export\Data\Attribute;
 use FINDOLOGIC\Export\Data\Image;
 use FINDOLOGIC\Export\Data\Keyword;
@@ -272,4 +273,81 @@ public function testAttemptingToGetCsvFromAnXmlItemResultsInAnException()
             $this->assertEquals('XMLItem does not implement CSV export.', $e->getMessage());
         }
     }
+
+    /**
+     * @return array Name of add method to call in a test to add a certain value, and an array of values with
+     *      usergroup names as key.
+     */
+    public function simpleValueAddingShortcutProvider()
+    {
+        $stringValuesWithUsergroupKeys = [
+            '' => 'No usergroup',
+            'foo' => 'One usergroup',
+            'bar' => 'Another usergroup'
+        ];
+
+        $integerValuesWithUsergroupKeys = [
+            '' => 0,
+            'foo' => 3,
+            'bar' => 10
+        ];
+
+        return [
+            'name' => ['Name', $stringValuesWithUsergroupKeys],
+            'summary' => ['Summary', $stringValuesWithUsergroupKeys],
+            'description' => ['Description', $stringValuesWithUsergroupKeys],
+            'price' => ['Price', [
+                '' => 13.37,
+                'foo' => 42,
+                'bar' => 12.00
+            ]],
+            'url' => ['Url', [
+                '' => 'https://example.org/product.html',
+                'foo' => 'https://example.org/product.html?group=foo',
+                'bar' => 'https://example.org/product.html?group=bar'
+            ]],
+            'bonus' => ['Bonus', $integerValuesWithUsergroupKeys],
+            'sales frequency' => ['SalesFrequency', $integerValuesWithUsergroupKeys],
+            'sort' => ['Sort', $integerValuesWithUsergroupKeys],
+        ];
+    }
+
+    /**
+     * @dataProvider simpleValueAddingShortcutProvider
+     *
+     * @param string $valueType
+     * @param array $values
+     */
+    public function testSimpleValuesAddedToItemViaShortcutAccumulate($valueType, array $values)
+    {
+        $item = new XMLItem(123);
+
+        foreach ($values as $usergroup => $value) {
+            $item->{'add' . $valueType}($value, $usergroup);
+        }
+
+        $this->assertEquals($values, $item->{'get' . $valueType}()->getValues());
+    }
+
+    public function testDateValuesAddedToItemViaShortcutAccumulate()
+    {
+        $values = [
+            '' => new DateTime('today midnight'),
+            'foo' => new DateTime('yesterday midnight'),
+            'bar' => new DateTime('tomorrow midnight')
+        ];
+
+        // On assignment, dates are converted to strings according to the format set in the schema.
+        $expectedValues = array_map(function (DateTime $date) {
+            return $date->format(DATE_ATOM);
+        }, $values);
+
+        $item = new XMLItem(123);
+
+        foreach ($values as $usergroup => $value) {
+            $item->addDateAdded($value, $usergroup);
+        }
+
+        $this->assertEquals($expectedValues, $item->getDateAdded()->getValues());
+    }
 }