Work problems in the backs of the chapters. Work problems from old exams. If you cannot work a problem, seek help from more advanced students or a professor. If you find a problem hard but doable, go back and rework it in a couple of weeks to make sure you have mastered it. Finally, have a set of notes of facts and formulas that require memorization, and spend the last few days mastering them.
Some schools have open book exams.
Don't mistake this for a chance not to study. Have your material organized so that you can find any fact you might need. If possible, have 6-8 pages of notes with all of the facts and formulas you think you might need. Pace your study so that you have adequate time for the other demands in your life. Start early enough so that your job, family, course work, recreation, etc. still fit.