I don't use my nice pens most of the time. I chew on pens and I throw em around all the time.
I can only use the uni-ball rollerball style, but sice micro. Only micro. Can't use anything else. And I always have a red and a black on me. I like using the red to mark up stupid fucking memos and decks that my subordinates show me so I can give them visual proof of how much better I am than them.