Many here like Nevr Dull and Simichrome. My local electronics repair guy likes Flitz metal polish better. He just demonstrated it, and it works well. He rubbed some on my 24 year old plastic Bleumels fenders, and the patch he polished looks like new. I didn't think there was hope of cleaning them.

Then I got to thinking. This stuff is expensive. Can I make my own? Well, yes, and I can do it non-toxicly (sp?), too. Check out this article! Scroll down to where it gives recipes for "metal cleaners and polishes".