I also think: okay, I've lost X amount of weight so far, I don't want to gain ANY OF IT back... so get your butt up and exercise!!
Also since i have horrible back problems if I take more than one day off my back will be screaming at me the whole day! So I suppose my own body motivates me well! hahaEventually, you get a little better with it and find that it isn't as horrible as you figure.

