Bizarre habits

My music library on my computer also has to be perfectly organised. I can't stand it when I use someone else's computer and music files are tagged incorrectly or not at all, etc

Something similar, I must always organise files in folders or on my desktop so they are neat and tidy, you know like perfectly lined up and stuff.
Not really fussed about the order of things but they must be straight and neat.
Drives me barmy when I put my girlfriends memory stick in my mac and her files are just piled in anywhere, overlapping and stuff, aaargh!