GRE Preparation

<p>Hi,</p>

<p>I'm looking for advice on how to best prepare for the GREs. Is it worth it to buy the books or spend extra money to take one of the prep courses? How early should you start preparing? What did you find most helpful in preparing for the test? Was there anything else you wished you'd done after you took the test?</p>

<p>Any advice appreciated, thanks!</p>