I'm pretty tidy but not quite OCD organised. I have a touch of OCD tendencies in my ADD but it's not too bad - just enough to annoy my friends apparently when I frequently tweak something they've just touched/moved/set down. xD I can't stand not being able to find things; I always know exactly where I left things, even if I put it there years ago and haven't touched it since. I hate chores left half done like dishes filling the sink, junk all over the counters, closet half-organised, etc. I hate stuff on my bed, all my college papers are fairly organised, and on shelves I always have things arranged nicely and accessibly. I'm CLEAN as well as tidy, you could say, actually. The only problem is that whenever I tackle a larger project (like a closet) I start looking through stuff, then realise the huge mess it all is, and get entirely overwhelmed and panic and go to bed.
My boyfriend likes to dump laundry and junk on the bed, lets the sink fill up with dishes ALL the time, lets the fridge get all dirty, etc. He CAN organise and fit things in the closet really well, he just... doesn't. He occasionally gets into a cleaning spree and does everything really thoroughly but all the time in between makes me want to just do it all myself! I HAVE to have clean surfaces SOMEWHERE to set things down and I have to have counter space to work with in the kitchen. (In his defense, he hates doing laundry and he can grill awesome meats so I don't mind helping) All my desk supplies are tidily in little plastic drawers, drawing things in a shoe box, current semester coursework in a binder, notecards tidily stacked and separated, etc.
My friend pays me to organise her life sometimes, whether it's her room, closet, all of her teaching crap, etc.