When snack cravings hit, why is it that unhealthy food seems to magically appear around the office, like some kind of buttery mirage? To help you resist the call of yet another co-worker's birthday cake (and the inevitable post-frosting energy crash), we're giving three lucky winners Luna's new Fiber bars, which have 7 grams of fiber and just 120 calories. The winners will get a box each of all three tasty flavors: Peanut Butter Strawberry, Chocolate Raspberry, and Vanilla Blueberry. To enter, just answer this question in the comments section: What is your favorite way to stay active?
Read the official rules here.