Wow i really need to do this. didnt have my wipers on cause i was painting them. then washed my car and started to drive like 50 to dry it off. I didnt wipe the windshield and i couldnt see shit. almost died lol. Meguiars is always a good brand though.
You can save yourself a ton of work with the paste wax and just get the Maguiar's spray detailing wax in a maroon bottle and use that right after you wash and dry your car. I use it every time I clean my car and it works better than Rain-X. It saves you a lot of time and effort that you would put in with the paste and works just as well.
please dont use rain x idky but it leaves some spots some times it looks like shit and you will hate ur self sor life i wax all my ext windows but also use steel wool on them or razors DO NOT USE STEEL WOOL/RAZORS ON TINT,OVER DEFROST STRIPS, AND MIRORS PLZ but i just do them that way so they are clean and no streaks