For pro athletes, there's always a race or game to train for; for the rest of us, the stakes may not be as high. No matter, says boxing champ and former Biggest Loser trainer Cara Castronuova. Having a short-term goal for yourself can help motivate you to stick with a workout routine. "Any type of goal can make you focus 120 percent. It's a mental thing. Book a trip every three months or sign up for a race in the summertime," Cara told us at a recent Puma BodyTrain event. Or use events in your life, like a wedding or a family photo shoot, to spur you on.