My NES games used to be organized by title on an incredibly giant shelf. At the very bottom I had Zoda's Revenge, which is the only game I still have in its box.

That shelf is gone now, though. All the NES games are now stacked in boxes in a corner somewhere. Except for Megaman 3 of course. Never leave your game in the NES either. I learned that the hard way. You leave a game in there and you'll damage the pins.