Stack together the items on your bags with this simple add-on for WoW
Version: 2.1Stackpack is a free add-on for WoW that searches each of your bags to stack items together. Stackpack will move tradeskill items and Soul Shards where they belong.
Operating System: Mac OS X
Stackpack will stack your items in the bank as well, and ignores any changes to your normal bags so you can easily split and add partial stacks to your bank slots as you please. Additionally, Stackpack fully supports users of all inventory management addons.
Stackpack will toggle itself off automatically when you split a stack of items. You can also bind a key to temporarily disable Stackpack (which will re-enable itself automatically after the next inventory change) or you can use the /sp toggle command. To turn Stackpack off permanently, you can use the /sp off command. Using /sp on will turn it back on.