sorry i suck at taking pictures of headlights, especially at night.
well awhile ago someone posted saying the easiest way to do get rid of foggy headlights was not to sand them but use this

meguiars plastx cleaner and polish.
it cost me about $6 at local autoparts store, available from meguiars.com for 4.99 plus shipping
simply take a towel (white terrycloth preferably) apply some plastx to it, rub it on to the headlight, then take a clean towel and rub it off.
the pictures below of the 'after' was after only about 15 seconds of worth of work, it could be better with more. My lights were drastically brighter after doing this.
before

after

before

after
mods feel free to move to projects and attach the pics if you want