I've been known to leave washing up in the sink for over a year before doing anything about it! I've sometimes finally got round to washing it but I usually simply throw the lot into a bin ;-)
However, I can't stand pictures that aren't 'absolutely straight'. It doesn't matter whether it's in my own home, in a friend's home or somewhere I'm visiting as a stranger; I've just got to straighten it up.
Elvis: Please don't start the toilet roll arguments again! They've been aired before on AB and people have nearly come to blows over it :-) Anyway, any sensible person knows that it should be 'under' not 'over' ;-)
I don't think that I've got many habits that annoy my family and friends, simply because I've cut myself off from my (boring) family and I choose my friends very carefully. However, although I tell myself (and others) that I'm not superstitious, I always remember to greet a single magpie with the words "Hello Mr Magpie,how's your wife?", in order to undo the bad luck that a single magpie brings about. This tends to confuse hitch-hikers, and others, in my car when I pass single magpies every few yards along the road ;-)
Chris