Did anyone ever really use the tiny slot in the back of their bathroom

the empty medicine cabinet, the labeled razor slot, the taped-over hole through which I think razor blades were once visible

As some have stated it was a used single or double edge safety razor blade disposal where the blades dropped between the walls to be forever

razor slot in medicine cabinet I also suggest against the old-style method of dumping used blades through a slot in your bathroom wall medicine cabinet because it may

razor blade slot history A: My old 1970's metal medicine cabinet has a small opening that I insert the used blades in Or, you could cut a slot on the top of a used plastic