A list of your current Backpack Items can be found inside the 'Backpack' tab which is in the 'Crafting' window. On this list, the image of the backpack item is shown along with its name. In the upper right corner of each icon is a number followed by a slash, followed by a number. The first number indicates how many you have of this item, while the second number indicates the maximum number of this type of item you can have in your backpack.
Backpack Item Maximums
Until December 2011, maximum numbers were not enforced; many people stocked up on hundreds of certain backpack items despite the " / 15 " (etc.) notation. However, maximums are now enforced to a certain degree by Playfish.
If someone sends you a free gift when you have the maximum, you will not be able to collect the item until you use up a few objects to fall back down below the max. Objects will also stop dropping backpack items when you have reached the maximum of that kind.
List of Backpack Items
Note: the previous list was divided in regular items/themed items/quests items, but we decided to create a new list dividing them with an alphabetical order because many themed/quests items have become regular items.
These backpack items are used to do jobs or complete promotions in the different Careers.
Dunkin Donuts Promotion
These items are part of an in-game advertisement promotion from Dunkin' Donuts. They are not required for game play, but can give bonuses to your Sim.
These items are part of an in-game advertisement promotion from Yosicle™. They are not required for game play, but can give bonuses to your Sim.