[truckster]

Here's the deal on polishing:

First, it works much better with laminated glass than with tempered glass, because the surface of laminated glass is softer. Your door glass is tempered glass, so it doesn't polish up very well. A windshield is laminated glass, so it's a better candidate for polishing.

Second, polishing is really slow work. You're going to have a lot of time into it for a result that you probably won't like.

Third, polishing only removes the most minor surface imperfections. Wiper streaks may come out, but if you can catch it with a fingernail, it's not going to polish out.

So, yes, polishing is an option, just not a very good one, in my humble opinion.