I collect shot glasses too. Figure the collection stands at about 600+ at this point. I've got a slew of Hard Rocks and a buncha Planet Hollywood. The remainder are from my travels and also my friends/coworkers. Seems whenever a coworker comes back from a trip, I find a shot glass on my desk.
David's made me a couple of custom-fit shelves in my living room about 8" down from the ceiling which house probably close to 100 of them. The rest are either in my glass cabinets or packed away.
When I FINALLY buy a house (I think next spring I'll get serious about it), then David can make shelves for every room so I can display all of them.
Gotta say one of my FAVS right now is an etched Bumper shooter glass. Was waaaay touched when I received that one!!