people who don't put a trash bad in the can before using the trashcan, people who don't empty the dustpan after sweeping, people who walk off or talk on the phone while I'm in the middle of talking to them
People that sweat the small stuff in life, making a Mountain out of a mole hill...
I have a HUGE issue with people who sneeze, cough, chew gum, clear their throats, etc. without any regard to the noise level involved. It honestly makes me feel claustrophobic to hear these sounds particularly if I'm a closed environment with the other person.<br />
Oh, and I agree with a couple of the other comments here.. Bad spelling, grammar, and punctuation aggravate me no end. And I'll add text message shorthand to my list of gripes as well.
People who shift from the singular to plural in a single sentence.
All E.Pers know my pet peeve by now!;--BAD SPELLING!