Question:I have to take it tomorrow and anything will help, especially on the writing section...Oh and if you are wondering why I am posting this again, it is because I put it in the wrong section...long story...
Answers:
Bring food to the test center for the breaks.
For the writing, organize your thoughts for like 2 minutes before you start writing.
I can't think of any more tips off the top of my head, but a very good review site is http://www.number2.com/