Hello, RainX is fantastic stuff. Don't bother buying wipes or washer fluid with the brand name. Buy the original "windshield treatment", in 4 or 8 ounce yellow bottles. It takes work to rub into the glass. Use a small circular, overlapping motion with a 4 square inch piece of cotton cloth. Keep the bottle in hand to maintain the wetness of the applicator. You can't load up, say, a sponge with the stuff as it is thin and will just run down the glass. The circular rubbing facilitates bonding with the glass molecules. Do the entire windshield with clockwise motions then again counter-clockwise. When the glass hazes over, buff it to clarity with another(larger) cotton cloth. This is the hard part. IMPORTANT: Using your finger tips, flick a little water onto the windshield to facilitate buffing. If you get lazy and leave it hazy you'll be tortured by oncoming headlights. Four of us did a group RainX session a while back and it was alarming to see how quickly people gave up on the exerting process. Heck, some of the guys were complaining about thoroughly cleaning the glass to start with. Others stated that the product accumulated, "gummed up", on their wiper blades - that's inconceiveable. It'll take 45 minutes, your upper arms will talk to you but it's so worth it. Kira