On my iPod Touch I like to have my music library all nice and organized. So when there are 2 artist that are the same I have to fix it right away and delete it and find the problem.
When I eat a meal I always have a drink. But I always have to finish the drink first then go onto french fries and then the chicken in that order.
And when there is stuff on my desk I like to have it in order and where the things were. And if it's moved to a different place I have a little freak out and put it exactly back where it was.