A.C.
Honestly, any movement is good for you and can tone you up. Combine it with eating better and smaller portions and you are sure to lose weight and tone up.
If you have a Kinect with the X-box, or a Wii, I have liked the Dance Central and Just Dance games. Zumba Fitness is also good. Kinect Adventures is a kids game rather than a workout. All of them get your heart pumping and burn a lot of calories.
There are a lot of other ways to tone up without a gym membership. When we got a trampoline this spring, I went jumping on it with my 5 year old for about 30 min. a day and I noticed a difference in my leg muscles. I used my heart rate monitor and noticed it burns a moderate amount of calories. So does walking, jogging and hula hooping. Hop onto the fitness pages of Pinterest and you will see tons of links to online workouts or even just little pages that tell you a series of exercises to do for a great butt/arms/whatever.
My daughter does basic exercises daily like pushups, squats, crunches, jumping jacks, mountain climbers. She will do these for 30 min a day or so and she is starting to look ripped. She literally has a 6 pack. She just does these exercises while watching tv.
Also, Jillian Michaels 30 Day Shred is a very good dvd and is only about 15.00 at Walmart or Amazon and you will get results from that one.