Froggy squats: spread your legs apart with your feet facing foward, squat down with your hands on your waist, and jump fowards two times, and back two times. Do this for about 30 seconds at a time, try doing it two or three times a day. Trust me, you'll feel it the next day! Try to squat lower each time you do this exercise, by the way, the deeper you squat, the more you're stretching your thighs. Also, try toe lunges: get up on the balls of your feet, and pretend you're jumping across a stream. The farther you can jump, the better. The key to this exercise is to never let your heels touch the floor. Stay on your toes, jump, turn around (still on your toes) and jump again. What's really great is kids are happy to get in on this one. Try to do this for a minute, a couple of times a day. Last, try some wall squats. You'll feel this one right away. Pretend you are sitting in a chair up against a wall. Try sitting with your legs at a 90 degree angle, above 90 degrees, and lowers than 90 degrees. Try to set a time limit for each, say 10 seconds for each, and then try to increase how long you can stay in position. When your legs start shaking, it's time to stop and do something else. Remember to warm up before doing any sort of exercise - try jogging in place for 30 seconds, jogging and lifting your heels (as if you're going to kick your own butt) for 30 seconds, and then jogging and lifting your knees really high for 30 seconds. Then step one foot forward and stretch up and then exhale while reaching towards the floor. Take a couple of breaths and then repeat with your other foot forward. All these exercises will help you warm up your legs and also help tone as well. Good luck!