https://grockit.com/blog/gmat/2010/11/23 ... your-gmat/from the article...
A week beforeDO Stay healthy. Make sure you exercise, eat well, and get lots and lots of sleep.
DO Get a massage. If you can, try and get one two or three days before the test, but not the day before.
DO Clean your living space. A clean and organized living space helps promote a focused and confident mind. A lot of people don’t think this makes a difference until they try it.
DO Visit your test center. If at all possible make a visit to the test center you’ll be taking your test at. The less you have to think about in terms of traffic and road conditions on test day, the fewer excuses your nerves will have to get wired.
DO Check the GMAT Center’s website for what items you can and can’t bring to the test including any ID requirements. You don’t want to be surprised the day of the test.
Day before GMATDO Have fun with friends
DO Eat your favorite dinner
DO Watch a funny movie before bed
DO Sleep at least 8 hours
Grockit.com is good place to practice GMAT like Questions topic-wise, section-wise, difficutly level-wise and also network with other GMAT takers.