Funsubstance just dropped the "remind us to remember to remind us to remember to repeat the things that need to be remembered" ball on us, there it seems
Also, sleep plays a large part in turning short-term memory into long-term memory. So the best time to study is right before bedtime so that the study material is foremost in your mind. Even taking a 90 minute nap after studying will significantly improve memory retention.
Or just pseudo-sleep in class. Absorb the teachers words as if they were a sonnet written just for you. Teachers tend to give answers to their own tests.
someone remind me to remind xvarnah to remember to repeat the thing in 24