I'm a math major with lots of theorems/definitions to know by heart. I regularly use flash cards so I can study while I walk and wait. Basically, I quiz myself on if I can fully remember and perfectly state the definition/theorem. I have used summary sheets in the past, but find that they take too much time to write out nicely (By summary sheet I mean all the definitions/theorems and maybe relevant examples condensed on one side of a 8x11" sheet). Also, it should be noted that lots of practice time (i.e. actually doing math) is assumed. I can't learn it by simply reading it, so I do put in my time. My questions is: what types of technique do you use to remember these types of things? I always like hearing about the creative ways people use to study.