[Erin]

Remember to change up your routine each month. (This can be prolonged to 3 months if you continue to do the same exercises, but in a different order.) Your muscles get used to doing the same thing over and over again, so when you switch it up, it stimulates them all over again and you'll see much greater results.

Machines are a great start for beginners, but when you can, try to add some free-weights to your workout regime. The machines use cables to make it easier for your body to lift the weight.

Most gyms have personal trainers on staff who can answer any questions you may have, and can also suggest a few new exercises when you need a change.

(I used to be a personal trainer until I gained a lot of weight and couldn't bring myself to take on any more clients while looking out of shape myself.)