Shop solvents commonly come in large containers that aren’t very convenient. Maybe you got a brand-new tool (yeah!) and you need to clean all the schmutz off the surfaces. Naphtha works wonders. Perhaps you want to wet the grain of a piece of wood to get a preview of how it looks or check for glue residue. Using mineral spirits is a great way to do so. But wouldn’t it be handy to have a spray... Source