I've seen the discussions on the 'polish' to use on things like headlight
> lens when they yellow or become fogged.
>
> I thought the polish was available at Wal-Mart, but I looked yesterday
> and couldn't find anything.
>
> Any recommendations as to what to use?
>
> I have a 93 Intrepid with the headlights all milky, and a 95 GradPrix
> that has a 'light bar' that turned yellow and cloudy.
>
> Also... does the stuff work well with mechanical buffing or does it
> really work well with hand rubbing (for hours and hours and...)
>
I do this all of the time when I paint cars. I just use a very mild rubbing compound (swirl mark remover), which is available in any auto parts store. You can apply it with a buffer, or by hand. If you do it by hand it will probably take 10-15 minutes per headlight.
You'll have to do this again from time to time as the lens will continue to scratch from driving, but it's such a simple thing to improve the look of the lens that it's worth the effort.