2 questions in 1

1: what does anybody recommend for keeping stainless steel exhausts looking like new? should i use car soap, some kind of abrasive polish, wheel cleaner?

2: my friend just had some projector headlights installed in his civic and there's lots of condensation on one of the lenses. it's cleared up a bit since then, but only in front of the projectors. what's the best way to eliminate the rest? blowdryer?