My hunny and I have been together 5.5 years, so I got a few:
* His leaving his dirty socks on the floor
* My need to clean up every little mess in the house
* My "borrowing" his wifebeaters, socks, boxers, t-shirts...
and making them my nightclothes
* His not cleaning up the kitchen right (he will put dishes in the dishwasher, but won't start it or wipe the counters)
* My using his hairbrush and leaving hair in it
* My taking too much time to get ready in the morning
* Car (when I had a car and we were sharing he would want to put speakers, tint and extra crap on it--I didn't need all that)
*Pets
*Air conditioner (I see some of you have that problem too)