People who interrupt when I'm talking (I usually just keep talking, just much louder....unless it's something really important)
People who drive up and down the rows of a parking lot trying to find the closest space possible, and then wait for 3 minutes for someone to load their stuff, get in and back, so they can get that spot. (I usually park way out, and if a car starts down the row pacing me, I'll pull my keys out like I'm about to get in the next car, but I just keep on walking while they grow impatient creeping along.)
Open mouth breathers cruising along in the passing lane on the freeway, not passing anybody and being passed themselves, oblivious to it all, whilst I cruise along at 5 over in the slow lane passing all of them.
People who sit there for 3 seconds after the light turns green, and the douchebag behind them who also sits there for a second or two after the first douchebag takes off, and the douchebag behind them too.
People...nay...douchebags who run red lights.
People who don't know the difference between 'a' or 'an', you're, ur, your, their, there, they're, to, too, know, no, week, weak, brake, break, no one, or Noone.
People who honk their horn when they leave the house.
Tailgaters
People who say, "it's only money"
My computer freezing up for 20 seconds whenever I click on a link to any news site.
People who text, read, put on makeup, etc, while driving.
Some other stuff, but I'm mildly drunk and falling asleep.