Sometimes it pays to rummage through your collection.

Sounds like fun.
This doesn't happen to me. I don't save the rare and special sticks long enough to forget them and my desktop has samples from every box so anything I forget about is pretty ordinary. If I got another cooler I might start to loose track because I wouldn't tetris as much. Sometimes I combine almost empty boxes into one to make more room but I look in them to remind me what's there.