What do you guys use to polish glass.

I know I've seen some people do it before just for the shine effect, but I considered doing it because back about a year ago, I put some super fine scratches in the passenger side of my windshield. You can't even see them unless the car is in the sun and you look it at at the right angle, but it still bothers me and I want to fix it.



Haha.
Ideas???

 

I use this:

http://www.autogeek.net/dp515.html

No complaints with it. When a body shop painter had some clear coat overspray on my windshield, I used this and all of the overspray clear coat were gone. Works on fine scratches too and leaves the glass pretty smooth.