I'm never fortunate enough to have a wad of notes but I do like them being the right way up etc. I'm the same with coins. Drives me mental if they're not in ascending size order when they're in my hand, so much so that I can't pay for a drink in the shop, what have you, unless I have the coins sorted first.
Another one I have is laundry. I have to take all the towels off, then clothes by who they belong too etc and it actually infuriates me if any of my lot leave trousers with one leg inside out. Don't get me started on socks..
Ive just become aware I'm not a full shilling.