I study out of the book, but I usually read it once and if I remember it, I remember it. If not, then sucks for me lol.
Study guides? Those never helped. I usually bought those but never use them so I stopped buying them and I practically wing most of the quizzes/tests nowadays. I'm guessing it works since I'm passing w/ decent grades lol :P
Back in high school, we had study guides but they never helped on the test. In fact, study guides were just questions we had to answer from the book, often different from the book too which was strange, and the tests were different as well.
Actually DOING the hw was the only way I studied, and I hardly did that anyway.

Damn senioritis!