No time to get to the gym? Signing up for a membership isn't in the budget? Don't sweat it. You can get a good workout without setting foot in a fitness center.
"Working out shouldn't be a hassle," says David Kirsch, personal trainer and founder of the Madison Square Club in New York City, whose celebrity clients include Heidi Klum, Kate Upton, and Kerry Washington. "Being able to take your workout with you makes it more fun." Kirsch suggests three basic moves that can be done anytime and anywhere with zero equipment. Aim to complete the circuit at least four times per week.