Make sure the nail polish remover has acetone in it. Mask off areas you don't want removed (like the silver trim on door handles, etc) Brad is absolutely right - watch the pressure. What I do is start the process with the nail polish remover and then I'll go over the smudged area w/ lacquer thinner. The thinner cleans things up nice. But again, watch the pressure and DO NOT get lacquer thinner on the plastic windows!! It pays to take the time to mask off areas! :thumbsup:Puppycat said:Nail polish works perfect. Try to keep it away from painted areas and do not apply to much pressure. It can take some of the paint away.