Successful students take notes that are understandable and organized, and review them often.Why put something into your notes you dont understand? Ask the questions now that are necessary to make your notes meaningful at some later time. A short review of your notes while the material is still fresh on your mind helps your learn more. The more you learn then, the less youll have to learn later and the less time it will take because you wont have to include some deciphering time, also. The whole purpose of taking notes is to use them, and use them often. The more you use them, the more they improve.