im sure mine hasent been done either.. as far as the headlights go.. i've done mine 3 times, just because i like to keep them CLEAN as in bugs and road dirt, for 2 bucks you get a very good cleaning kit from autozone and if you have a drill (i use a 5amp Roybi) you attach the sanding pads, and work at it.. works great.. here i have a video of when i did my lens..
http://www.youtube.com/watch?v=SdmXho6HoGY

there it is.

and heres a comparable image.