Polishing tail lights w/Novus 2
Thought I would mention this, although maybe a lot of people know about it. I repair/collect pinball machines, and one of the indispensable tools I use for restoration is Novus 2 plastic polish. I use it on the playfields, as well as any plastic pieces to remove scratching/haze. It also works well on headlights, and tail lights, or any hazy/scratched plastic. They also make a Novus 3 for deeper scratches, but I find the 2 works best all around.
This is a before and after pic of the tail lights on my Thor ACE after two applications on Novus 2.