Workout motivation tip: “Most people think they need to exercise for 30 to 60 minutes, which can seem daunting, but you can actually get a better workout in just 20 minutes,” says Wayne Westcott, Ph.D., exercise science instructor at Quincy College in Quincy, Massachusetts. The time-trimming workout motivation tip: intervals. Try alternating two minutes of moderate-intensity cardio with two minutes of high-intensity intervals, Westcott suggests, for a simple-to-remember session. Still can’t squeeze in 20 in one sitting? Do one 10- to 15-minute session in the morning and one after work. A study at the University of Wisconsin-Oshkosh found that overweight women dropped equal amounts of weight doing one 30-minute workout, two 15-minute sessions, or three 10-minute bouts.