I won't deny it, I loved that guy. His genial manner, his voice, his hand motions... and I've been using OxyClean to get out stains for a while. Er, well, the generic brand now, but still.
If you need a refresher, here's a characteristic video:
ADDENDUM: Here is a comic I made about Billy Mays and posted on a forum around two years ago. All in jest, of course.

Note the characteristic hand gestures ;-)