Next to nothing makes me angry. I haven't been mad for a very long time.
I'm not sure I even know what grinds my gears anymore, besides when I can't find the droids I'm looking for.
I'm going to have so say the stereotypical 'weeaboo' does annoy me, though: those that say they know Japanese from watching anime and constantly flaunt it to everyone, when actually not knowing what any of it actualy means, nor how to use it properly.
