After you have prepared a course outline (if you plan to do so), sit down and review your class notes from end-to-end. If a case or legal issue was worthy enough to be brought up in class, and worthy enough to make it into your class notes, then it is worthy enough to potentially appear on the final exam. So it should be in your legal outline for the class.
After you've read your class notes once, read your class notes again, more slowly, to make sure that every case or legal issue that was mentioned or discussed in your class notes is somewhere in your outline. Make sure that any important themes or legal issues appearing in your notes (even if just mentioned) appear somewhere in your outline. Be methodical. For example, if you typed your class notes on a computer over the course of the semester, then print out your notes, take a highlighter, and highlight your class notes as you verify that everything at all relevant in your notes appears in your outline. Do this until your class notes are entirely highlighted. When you are done with this process, your outline will be much better, and should reflect the issues emphasized by your law professor.
Prepare a one paragraph summary of each case assigned from the casebook. Keep it straightforward and easy to read. Too many acronyms like "P sued D", etc., can be distracting. Don't blindly the structure of some commercial outlines which strictly separate a case summary into "Facts", "Holding", "Disposition", etc. Keep the summaries simple. If you are allowed to use documents such as this during the final exam, then include the page number of the case from your casebook in your case summary. That way, if an exam question asks about a particular case, you can read your summary and then go right to the case in the casebook, without fumbling with your casebook index or table of contents. If you cannot use these summaries during the exam, preparing the summaries may still be a helpful exercise to remember cases. Either way, these summaries are useful to read right before the exam if, like me, you have a hard time remembering specific case names.
Stop studying for any exam at least two or three hours before the exam. Use the time to do something else - it will help clear your head for while before you have to kick it into high mental gear. If you go into high gear too early before the final, you may run out of adrenaline and motivation too soon.