I use Wet Ones baby wipes. Great for sanitizing. And is not potentially damaging like IP alcohol is.
Uh, for lice, you'll have to look with a magnifying glass and use a pair of tweezers.
If you are really really paranoid about bugs in general, use a RAID Fumigator (not Fogger), and bomb the whole room with your headphones out. Let headphones air out for a few days before wearing. Wipe down with Wet Ones or just damp cloth to clean afterwards.
Oh, and uh, only use one fumigator, and it helps if you or anything living is not in the room at the same time.
-Ed