Consistently working out can get you in the shape of your life. But keeping a consistent routine will lead to boredom, burnout, and plateauing fitness as your mind and body adapt and halt improvement. "The best way to supercharge your workout is to make small tweaks or add new moves that engage different body parts and take you out of your comfort zone," says Jimmy Minardi, ISSA-certified personal trainer and founder of Minardi Training in New York City. "By focusing on a combination of exercises that work each muscle group, and keep things interesting, you're more likely to see big fitness gains." Get started with these 11 upgrade ideas, all easy to incorporate into any routine.