I went to AutoZone and got a bottle of Meguire's plastic cleaner to use on my headlights. It worked really well. I did it a couple of times and I can see a difference. I think the bottle was around $6.

 

got pics? i want to see how well they worked for future reference.

 

You can use a PC with plastic polish on the lights, too. That will work even better than by hand for badly clouded lenses.

 

not to sound dumb, but whats a pc?

 

PC = Porter Cable Random Oribital Buffer. The model 7224 and 7336 are basically the same machine except that the 7224 has a 5" counterweight and the 7336 has a 6" counterweight. You can get the 7336SP (sander/polisher) at Lowes home improvement stores for $110 plus tax.