1. If you are not, make sure that you are getting clinical experience.
2. Consider research possibilities.
3. Take a practice MCAT to see where you stand. Consider your learning style / study skills / money situation and think about MCAT prep courses. They are definitely NOT necessary, but they help some people focus on studying.
4. Start researching which schools you will apply to. Find out each school's recommendation letter requirements and make sure you have people who can write meaningful letters for you.
5. Maybe start considering your personal statement. In general, the more thought you put into it, the better it will be.
6. Concentrate on your grades. Don't let them slip this close to the "end."
I guess that is all I can think of right now. Back to studying all night for my parasitology test. Good luck.