This NYT article touches on some empirical research about studying and learning that has not yet fully entered the educational world. One point I want to emphasize: the bit about multiple short bouts being valuable as opposed to single marathon sessions. It takes planning and time management to make this happen, but you will reap rewards I think. I was very surprised by the information about studying the same material in different locations being beneficial.
NYTimes Online – Health
Forget What You Know About Good Study Habits
Published: September 6, 2010
Psychologists have discovered that some of the most hallowed advice on study habits is flat wrong.