Okay, I got caught in a bad rainstorm and of course my wiper blades took a crap on me. Basically, the rubber insert in the blade tore off and the metal bracket repeditively scratched the windshield. As a result...there is about a 1cm wide light scratch across my windshield in the motion of the wiper blades. My problem is that I am meeting the buyer of my car tommorow and I need to somehow get rid of this scratch. I am hoping someone has an idea short of knocking down the price of the car to compensate for this. I was thinking possibly some type of polishing compound to try to buff it?? Please Help! Thanks.