I should just make it a wiki, I know, but the trouble with a wiki is that one worries that one won't get all the credit.
So here's another random communication rule (I'll collect these in a book someday):
Never address an audience as an audience.
Unless you're standing in front of a crowd or from the south, never write or say, "you all." Usually, your reader or listener is taking in your words all alone in a kitchen, a cubicle, a car or bathroom. He or she doesn't receive your words in a crowd, so don't say "some of you," or wonder "how many of you," or or refer to "most of you." It only reminds the reader unnecessarily that you're they're one of many and you're a big arrogant windbag.
Hey you: Just write, "you."