How to Clean my windshield?

This works on plastic aircraft windows so my guess is it will work on glass. And since it's less than 6.00 you don't have much to lose. Hope it helps.

http://www.mypilotstore.com/MyPilotStore/sep/4256?gclid=CjwKEAjwsqjKBRDtwOSjs6GTgmASJACRbI3fOTonIJIUOUCpPYGg8RsMp4-rRavFzVfK9UTPlFzJwhoCqQHw_wcB

shaving foam and rub till it dries

I live on a dirt road and clean mine on a shady day with a foam glass cleaner then put a rainex type product on it the dirt won't stick

Also,window wax works well. It's a bit of work to put on, but then the dust should just be able to be rinsed off with cool water. Don't use your wipers to clean your glass, it will abrade your glass and wear out your wipers sooner.

You could try rubbing the windshield with a dryer sheet