I can't believe no one has brought this up yet, but....what the fuck is the point of wahsing your hands if you touch the sink handle that you just touched previously when you hards were dirty? or for that matter, the door knob leading out of the bathroom?
Now don't get me wrong here, you have to wash you hands because not doing so is disgusting; but you always have to have a clean, unused, dry paper dowel handy for opening the doors, turn off the sink, etc. Again, otherwise, whats the point of even bothering to wash your hands at all? I use the towel and after I'm completely out of the bathroom and toss the towel away, I use hand sanitizer I carry with me. I'm no germophobe, but I know that most people are pretty disgusting in their health habits.