Originally Posted by DAVES

Nail polish is small bottles of lacquer and is great for all sorts of stuff. The set screw holding on the handle that turns the lock in our front door on. A drop of nail polish and then put the screw in problem of it loosening solved. All the cords we have for devices. A spot of a bright color on the top of the plug and you no longer struggle to figure which is the top side.

Black and white polish is great for marking stuff.

Wife and clear? If, you use all her colors it is easier to say it is evaporating. No it doesn't work here either.