hf213 - 6/2/2014 05:27 +1, I use the sponge side of a green and yellow scotch brite pad ( not the scotchbrite side ! ) Comet will work too. I have clay bar'd some and razor bladed too many, slow, but they will be clean, especially if you got some overspray on it and windshield feels rough. Polish compound on very wet shop towel too, wash with soap and water then rinse, works wonders too. RainX liquid and RainX wax helps if you want to spend the time, works here