I know that feeling. I can be quite sloppy at home. But at work, I kept my cube so neat someone once stopped by and said that someone told him my cube was the most organized he'd ever seen. It really helped me concentrate. It was like I couldn't get it under control at home, so I made that effort at work. Of course at home the messes weren't all mine!
I have equal parts neat freak and slop within me and they fight it out. Makes for a lot of inner turmoil!