I think I have a mild form of OCD.
I can't sit with the top end (the end you point at the TV) of the remote control facing towards me. It has to be facing away from me.
Whenever I set the alarm on my phone, I obsessively check that I have set it to the right one of AM or PM. I know I could just use 24 hr time but I don't for some reason.
When I'm going to bed, I almost always open my wardrobe, look inside it and close it again.
If I crack one of my fingers, I have to crack all of them.
Yeah, I'm insane...