LOL   I held offices in three organizations simultaneously, did ethics bowl (which required meetings two times a week for about three hours at a time), maintained a 4.0 in acocunting, and went to the gym for about an hour everyday.  Plus, I participated in about 5 other clubs on a regular basis at the same time.  Did I also mention I finished in three years? 

However, I spent a LOT of time that semester in tears because I was always overwhelmed by everything.  I would recommend picking a couple of things that really interest you and really pouring your heart and soul into those things.  And don't forget that a large part of college is about having a great time and making awesome friends.  That semester, I can't remember a single occasion where I had any fun.  Basically, don't make the same mistakes I did and make it so you can't do anything you want to do.  It's not all about making the perfect law school application.