My favorites:

The 10-Year Old Rule. Pretend you had to teach everything in your course to a ten-year old. Could you do it? While advanced theoretical physics might not be comprehensible by a young child, the idea is that you should be able to simplify your subject into easily understandable pictures and metaphors. If you can do this for yourself, it will make your job far easier for remembering later.

Set Daily Study Times. Set periods of time that you will spend studying each day. Once you spend a month reinforcing these learning periods, it will become automatic. Regular studying times prevent the need for cramming and can give you consistency in your schedule.

Link Courses to Daily Life. Spend some time each week looking for practical ways you can use the information you are learning. If you can find situations from your daily life that are similar to your subjects, they can go from abstract theories to concrete tools.

1. Use 30-Day Trials.
2. The Learn-It-Once Approach.
3. Morning Review.
4. Link Courses to Daily Life.
5. Background Reading.
6. Set Daily Study Times.
7. Cut Wasted Time.
8. Focus on Learning, Not Grades.
9. Read Papers Upside Down.
10. The 10-Year Old Rule.
11. Seek Your Professors.
12. Schedule a Balance.

This list has been severely abridged. To read the full list and full descriptions, view the original post at it’s source:
12 Tips to Improve Your Study Habits Next Term (PickTheBrain)