Way too many to list, but I will start with "all of the above". Sure there might be a couple that don't drive me insane, but not many.
I have to add to it *People that have so many pet peeves that there is basically nothing you can do that WON'T irritate them. Which basically makes me a hypocrite.
I think we Americans (and some of us non

) kinda get on a pedestal a little and let everything bother us about everyone else. I mean, if it really bothers us when someone thinks they are better than us or right about everything, wouldn't that be a little prideful too? I go back and forth with myself all the time about it, and since I am always right, it's really hard to find a winner in that one. I think I would be a much happier person if everyone didn't piss me off so much...of if I just didn't let them.