So I'm assuming this is something new that Blizz put in with the new equipment manager, but did you know what happens when you hold alt while hovering over an equipped item on your character sheet?
I had a very O.O look on my face after stumbling upon this. Pretty handy to be able to see what all you have in your bags for a certain slot. Or being able to put them in your bags straight instead of clicking and dragging.
And if this isn't new, then /facepalm >.>
(I really had no idea what to tag this with)