Think you're in top-notch shape? Prove it with the newest invention from Nike, the originator of the "Just Do It" attitude. The Nike+ FuelBand is designed to make all of your daily activity count toward your end fitness goal by tracking every movement you make throughout the day, translating them into steps taken and calories burned. The sleek black band shows you how much "fuel" you've earned through your moves—be it a 10-mile run or a casual jaunt to your morning cup of joe. And Nike's special software encourages you to program your goals into your computer or iPhone, then watch as the band's LED lights shift from red to green, indicating you're reaching your goal. If your new skinny jeans weren't keeping you honest, this will.