Motivation....how do I get some?

I'm going to be perfectly honest with all of you. Since I had my surgery I have totally lost my motivation. I've searched for it. Thought I found it a couple times but alas I have not.

I'm kind of in this rut. I don't want to be overweight yet I can't seem to stay on track. I figure something has got to give one way or the other. I could make excuse after excuse but it simply boils down to this: 1) I'm lazy and 2) I want to eat what I want when I want to.  There I said it! :(

So I have a couple questions for you. What keeps you motivated? What do you do when you feel yourself start to slip? How do you keep yourself on track?