2. Better to turn in one shorter excellent piece than a good piece and one bad one. Don't turn in work just to max out the page limit. And if you're finding yourself trying to cram all sorts of things into the page limit by changing the font and single-spacing, then step back and take a deep breath and think again.
3. Don't try to pretend you're something you're not. Most of you don't, and those of you who do don't do it maliciously, but just kind of slowly convince yourself into it as you write and rewrite your application. Look, it's easy to tell if you're faking. So don't fake.