So I haven'tt aken the test but have been prepping for almost two months. I've been studying for the verbal section with the Kaplan GRE Vocab in a Box. It's notecards that you can take with you wherever you go. I've found it extremely helpful and have learned over 300 words so far. My score improved on the verbal portion by 140 points so far on my practice tests. If you can't afford the notecards, you could always make your own. This way is just easier!
Good luck with your test, I'm sure you will ace it!