Oh, this is such a great thread, and I don't even work in a cube! Here are some of mine...
-People (coworkers and customers) who comment on how young I look for my age. As if there is a standard for how old someone is supposed to look at age 35. This is another one of those "I know you mean well, but I'm sick and tired of responding to the same old comment." I don't smoke, tan, eat crap, or apply makeup with a trowel. Maybe you should try it.
-People who comment on my food. Usually these are people who scarf down fast food while complaining about their weight/health issues, and they tell me that although my homemade food smells delicious, they could never eat as healthy as I do. Um, have you even tried?
-People who ask me to do things that are waaaaay below my level of training. Sure, I don't mind helping out, but please keep in mind that when I'm doing someone else's job, I'm not doing my own job.
-People who repeatedly ask how much longer it's going to be. (Invariably those who also do the above.) The more you interrupt me to ask, the longer it's going to take. I'm not checking Facebook on this computer; I'm working. Probably on something you're waiting for.
-Close-talkers. And their even uglier cousins, close-talkers with bad breath. Taking a step back every so often doesn't help; they just slowly chase you to the wall.