How a Single Man Can Tell if a Woman Is a Slob without Seeing her Apartment

I think one of the best ways for a single guy to tell how clean a girl is and how well she takes care of her stuff on a NORMAL basis (And not just a "planned" visit) is to ask her to do the following. Have her take a picture of herself in her bathroom mirror, and don't tell her why. If it's covered with spots/streaks/etc. and it looks like they haven't cleaned it since Ronald Reagan was in office, then folks, we have a slob on our hands.