I am not clinically OCD. But I have some definite OCD tendencies. Two aspects of this in one subject:
I'm getting my garage space ready to rent out as storage. This entails clearing out junk (an ongoing task as trash can space is available), cleaning, sealing untreated wood, and putting a concrete floor into 1 bay. The cleaning is easier said than done, because we're talking about a shed that can hold 5+ cars. And has probably never been cleaned. You fill a bucket up with soapy water, wipe down a section, rinse out your rag, and the water turns black. Now, you could change your water every 25 square feet, but I don't want to even think about what that would entail, or just clean with dirty water. So since I've got soap residue and dirty water, I'm doing a second go-through with vinegar water. It's still all filthy, but so much less filthy than it was. Then the plan is to rub linseed oil on all the untreated wood (at least for as much linseed oil as I have). As I'm doing all this, my rational brain is going "you've got to get this stuff listed so you can rent it out and start making money" and my OCD brain is going "but if I rent it out I won't be able to clean it properly" and my rational brain is going "IF YOU RENT IT OUT YOU DON'T *NEED* TO CLEAN IT, DUMBASS." And my OCD brain goes "nevertheless..."
The other thing is the parking configuration. So. You drive onto my property. The 5 car shed is on your left. Double door, double door, single door. One car garage at the end of the driveway. Bit of space on both ends to open car doors and pile crap. About a car's worth of space between the double doors for crap. As it happens, the turning radius on a Ford Mustang is such that, if you drive it right up to the 1 car garage, crank the wheel all the way, and put it in reverse, it perfectly goes into the furthest down side of the last double door. And the turning radius of an A-Team Van is such that, if you drive right up to the garage, crank the wheel all the way, and put it in reverse, it will perfectly pull in next to the Mustang. But The Van is longer than the Mustang. So it's easier to park the motorcycle next to the Mustang, between the 2 car door and the 1 car door. Practical. Easy. Makes a lot of sense. BUT...
From an OCD standpoint it is Bad. I've got 2 bays for rentals. Then I've got my vehicles. Then I've got another bay and finally the little garage. I could put my vehicles in the first 2 car door. But then I'd need to put a brick in the driveway or something to tell me when to start backing up. I could nose the Mustang into the last bay (instead of backing in). But then there'd be a gap between it and The Van--unless I do a bunch of farting around to get The Van in position every time I park (it's turning radius is too long to go in the last bay of the last 2 car door). And it HAS to back in so the spoiler will fit under the garage door (the shed is downhill from the driveway, so backing in, the spoiler ducks under the door and then comes up above the door once she levels out). The Van is too tall and long to fit in the 1 car garage. So practically, the best way to park my vehicles is the way I'm doing it right now. But it bothers my OCD brain because it breaks up the line of parking spots. :/
And if you're going "What the fuck did I just read? That's the most boring insane thing I've ever heard," yes. You're absolutely right. Welcome to my brain.