I've seen these razor blade slots before but I've never had the chance

I'm lucky - my 1983 house has a medicine cabinet, and on the back wall

so where do all those used razor blades go? in the bottom of the wall! and they wait there until some poor future remodeler decides to

razor shark slot medicine cabinet , was there anything ? Only the razor

razor shark slot machine Razor blade disposal in those old bathrooms There were a lot of razor blades that were