If your headlights are cloudy and not illuminating the road very well use some Armor-All Protectant on them, I got the idea when I noticed how well it cleared the plastic guard on the instrument cluster... Much cheaper than buying new lights, and still cheaper than that $20 "rejuvinator" kit that wal-mart sells... I'm kinda surprised, it actually worked... hahaha

 

i use mother's plastic cleaner i got at an auto parts store to clean mine.

 

If you're gentle, you can use an SOS pad on them and then put the Armor All (or whatever protectant you prefer) on afterward. It works pretty well.

 

I wetsand then polish out with powerball. Worked wonders on my moms Grand Marquis.

 

You can also use very fine sandpaper, starting with about 320 grit, work your way finer, then use some rubbing compound and polishing compound, you get rid of the weathered yellow lenses this way, for very little money, worked wonders on my 94 T-bird