When you craft, the ingredients seem to be pulled from the left most stack when you have multiple stacks of an item. Your crafted items are stacks in the left most stack as well.

If you are using a descending sort order for stacks (fullest stack to the left), you make 108 hard leather, and then create 8 Hard Leather Merchant's Pouches, You will be left with a stack of 90 Hard Leather and a stack of 8 Hard Leather.

Using the sort command, I would have thought it would stack these items back up into a stack of 99, but instead it simply placed them side by side, leaving you to manually pick up one and drop it on the other.

Can we have the Sort command stack our stackable items as opposed to doing it by hand? It would be nice if we could also have an option for it to do so automatically when an item is added or removed from inventory, regardless of reason (a good and proper auto-sort), unless that would be too processor intensive for the servers.