A note on reaching a plateau in your weight loss.
One is to make sure that you are still drinking enough water. A health instructor I had for a health class said that most diets advertise losing 5-10 pounds in the first two weeks. Most people do it successfully because... before that they are not drinking enough water, and once they do they lose the water they were retaining which sheds somewhere in the neighborhood of...5-10 pounds.
A second thing to do is when your body hits a plateau in weight loss a physical therapist told me once to "eat a big meal." It kicks your body back in to losing mode.
I've also heard varying your routine because your body gets efficient at doing what it does normally.