Polishing window glass...
 

...but not on my UrS-car - a different Audi. Anyone have a particular product that they like?

I think Griot's Garage makes some, also Eastwood
 

<ul><li><a href="http://eastwood.resultspage.com/search?p=Q&amp;ts=custom&amp;w=glass">http://eastwood.resultspage.com/search?p=Q&amp;ts=custom&amp;w=glass</a</li></ul>

Glass cleaner and news paper. (old skool style)

Glass cleaner and steel wool, only on the outside though...
 

DONT use on tint:P

Bon Ami ( real old skool)
 

<ul><li><a href="http://www.bonami.com/">http://www.bonami.com/</a</li></ul>