How do you study?

While there are some exceptions, I have noticed that most of the highest grades come from students who study, even for a short amount of time.  

When I was in school my favorite way to study was to rewrite all my notes, in a well organized one sheet of paper.  I would then have that sheet of paper memorized.  Another fun way to study was to get together with friends.  We would talk about what we each thought was important to know and then take turns asking each other questions.