hmm well.....windows, news paper works great, like mentioned above, it leaves NO lint and removes everything! and yes, you do use windex or invisable glass (however you spell it) that combo should give good results. as for washing, i use a cloth mit, works great also! another trick for windows is to wax them, yes, i said wax them, use regular wax, apply and let it haze then buff away, removes waters spots and is very smooth! try it, it works!! hope this helps