Dear Bruce M., I'm guessing you must be an official "*** **** Answer Person" because you seem to know so much about so many topics! You answered one of my questions a while back and I wanted to ask you an additional question. I asked about removing window film. Thank you for your response! Actually, however, I was talking about the shaded window film that is applied to a window with adhesive to keep the sun out. Do you have any ideas about that?? I've tried Acetone, Goo Gone, and ammonia. It still takes major amounts of elbow grease with a razor blade - and I have lots of windows to go:( Any ideas??