The other suggestions are good, but I just wanted to add that you could get into a cleaning routine. I schedule 1 hour every week to clean my desk at work, that way it pops us on my calender to remind me and every week I straighten up a little so it doesn't get out of hand. If you do the same thing every morning also, it's easy to not forget to put deodorant or something, because you put it right after you brush your teeth, which you do right after the shower, etc.