Study guides. I make study guides for almost every test that I have during each semester. These really help me compile a mega study guide that I can use to prepare for exams! If you are not given a semester study guide, ask your teacher if they could make one. Or, if teachers have power points, websites, etc. search these for key terms that you can use to create your own study guide.
Flash cards. I can't tell y'all how much flash cards have helped me throughout the years. It's really nice to have all the information you need to study in one pile. Although a pile can be intimidating at first, it's so rewarding to see your "know" pile grow bigger than your "don't know" pile.
Previous tests. Teachers at my school do not typically give tests back after they are graded. However, we are encouraged to go in and see the problems we have missed or even try taking the test again. I have always gone in and looked over old tests. It helps me get familiar with what types of questions I will be asked on the exams and the types of things I need to focus my studying on.
Study with friends. After I have done a lot of independent studying and feel pretty confident with the material, I will have study groups with my friends. These allow everyone to ask questions and get clarification as well as study while having a little more fun than sitting alone at a desk.
What are your favorite study methods?