BankStack

Sorts- moves like stuff together

Stacks- moves incomplete stacks of items into one complete stack

Compress - Taking incomplete stacks of items from your bags to your bank or vice versa. (ie 2 netherweave cloth in your bags and 18 netherweave cloth in your bank combine to be one full stack).

I played around with this on some bank toons and was really impressed. I thought my bags were completed filled after sorting/stacking/compressing I freed up almost 10 slots. With the ammount of crap multiboxers loot and store away we shoudl have some sort of automated sorting/combining system. This addon works great for your bags/bank....not really the best on your guild banks. I was able to get it to sort an individual tab but not the whole bank.