I've had several people ask how I'm storing my unmounted stamps, so here are some photos. This CD rack will hold over 500 CD cases, so I'm nowhere close to filling it up. But look how nicely it disguises the fact that I have in excess of 200 stamp sets! The rack is only 27 inches wide and less than 5 feet high. I still have about 20 Stampin' Up! sets to unmount and then everything will be in this rack. As you can see, I've left my background stamps on their wood mounts for now. There's something satisfying about the way they line up like little books. But you never know - they could end up on EZ Mount as well. There are a few boxes of wheels here, too. I plan to eventually unmount them also. I just don't use them as much in wheel form as I'd like.
Here's a closeup of my stamp labels. The colored labels are for companies. See the green SU! labels and the red "retired" labels? There are a handful of other companies for which I'll be making special labels to make them easier to spot in the rack when I get around to it. The top shelf of SU! stamps contains all of the word-only sets, both current and retired.