My kitchen windows always get a greasy film on them which is very difficult to remove completely. I have used and loved the Weiman cooktop paste ever since I bought a cooktop stove and thought "I wonder if this would work on my windows?" I put a little bit on a damp paper towel and tried it. WOW! After a light polishing with a towel, no streaks, no film, just beautiful glass. Much better and easier than the old time "Glass Wax". I just might use it on all my windows. Thank you!