Am I OCD?

I am a creature of habit. There are some things that are automatic. - I always put my wallet, keys and watch in my night stand drawer when I get home. My keys, wallet and cell phone all go into there own pockets in shorts or pants- wallet in the left back pocket, phone in the left pocket and keys in the right pocket. funny thing is my wife will put her purse anywhere and her keys are always somewhere. Which usually leads to them being misplaced.

Why is that we do things the way we do and in the order we do it?