I am compulsive about a few things, one is that my hangers all have to face the same direction in the closet. My Mom, who was as compulsive/obsessive as anyone I've ever known, taught me that. As she put it, if you have a fire and you want to take your clothes from the closet pole, always put the hangers in the same direction, then you will be able to remove them easily. I suspect if we had a fire at our house, I'd be thinking about more important stuff than which way the hangers faced, don't you? And still, I do it.
Another compulsion I have is to remove pricetags and sticky labels from everything I buy. Books are a good example; I cannot stand a price label left on the cover of a book. Don't know why, it just can't be there if I'm handling the book. Same with plastic bins and storage crates. It's gotta' go!
Even if it's on your bin or crate, it's gotta' go.
The worst peeve I have is with magazine inserts. Nothing bothers me more than to pick up a new magazine and have inserts drop out all over the floor, and worse yet, there are still more of them stuck in the pages. The first thing I do is remove all the inserts and toss them into the trash. So if you are a magazine publisher or advertiser, I advise you to nix inserts, because I don't respond to them or even read them. Does anyone?