The most important ingredient in any successful fitness routine is motivation. By focusing on why you want to lose weight or embrace a healthier lifestyle, you'll be much more likely to overcome obstacles, silence excuses, and slam-dunk your goals. That said, you probably have some favorite fitness tools, gear or gadgets that give you that little extra boost you need to get to the gym, the sidewalk or the Spinning class you've been wanting to try. Maybe it's a super-comfortable pair of running tights, the perfect running shoe or that one awesome headband that actually stays put.