Oh no... not again...

Is there anything quite as microscopically worrying and annoying as finding a small screw on the floor? "Where did this small screw come from? has a handle fallen off my chest of drawer? I can't see anything… it has traces of white paint on it, what has white paint that might have lost a screw? I'll put it there and keep an eye out for something falling apart so I can screw it back in." And I'm pretty sure that the same screw keeps falling onto the floor and I find it and go through the same process over and over again. But if I find something without a screw, I really don't want to go and buy a whole packet of screws just for the one. So it's a worry. A tiny worry, but a worry.