[rich]

I like to wash the glass a couple of times. Then using a little glass cleaner and dish soap solution I re-wet the glass and carefully slide a new razor blade over the glass removing any film or bug juice that the first two washings didn't get. Careful not to dig the blade into the glass. I've heard that you can order plastic blades from your GM parts man. I guess GM (and maybe others) have what is refered to as soft glass. This will help in getting a nice clean film.

Good luck