I used to lose them,but these days I throw inside my guitar when I'm finished,then it's such A PAIN IN THE BUTT!!!! to get it out.You'd think I've solved a problem.
But hey,how much of a fourth dimension can there be inside a guitar.Not much,as opposed to a whole room.
This would be an idea.Go buy a bucket full of them things.Then go to your room and flip it around like a pack of cornflakes.You can't fail to find one.