You may already know these, but:
* Read something light (like the paper or a novel) the morning of the test. This will start your brain so you won't be hitting the verbal reasoning cold.
* This may be kind of stupid, but during practice tests, I experimented with the best way to bubble, bubble each answer as I go, bubble each section as I go, bubble the whole test as I go. I found that bubbling each section was fastest with fewest transfer errors. See for yourself. Also, by circling the answers on your test book, you can easily check the entire thing if you have a few minutes left at the end.
* If you are down to the wire time-wise, bubble in any answer (c?) for the remaining questions. Then as you really answer them in the last seconds, change the answer on your sheet. This way if time is called you have a reply for each question regardless.
Good luck!