Thanks I will order the cloth and the cleaner today.
I too hate to clean glass I have tried all the so called streak free stuff too like invisible glass, and some other expensive stuff from the auto supply and none work.
It will look clean then as soon as the sun hits the glass then I can see how smeared it really is... looked like I wiped it down with a greasy shop rag or something.
One place I found I don't like to clean on the rear glass is the area between the 3rd break light and the back panel there is a small gap I cant get the towel into maybe a plastic spatula would work allowing me to press the towel down into the crevice.
GM should have painted that part of the glass black or something or made it where we could remove the rear speaker panel allowing us to clean the whole glass.