9. Workout with intervals
You didn't think you wouldn't have to sweat, did you? Interval workouts are ideal for quick results. At least three times a week do an hour long cardio session that goes like this: 10 four-minute high-intensity bursts followed by two minutes of slower movement. So if you're running, sprint for each burst and then power-walk or slow jog in-between. Sounds doable, no?
[Photo via @tashoakley]