I didn't think I would find a bigger motivator for lucid dreaming than the prospect of lucid dream sex, but I did!
Excerpt from EWOLD, page 164:
A few years back I was trying to lose weight. I would dream I was in a grocery store, bakery, or restaraunt, and food was everywhere. I was conscious that I was dreaming and therefore could eat whatever I wanted. I proceeded to pig out on the feast before me, even tasting the food. These dreams would satisfy my craving to gorge myself. I would wake feeling satisfied-not full, but satisfied-and if during the day I got the urge to eat something I shouldn't I just thought "I'll eat it tonight in my dream," and I did!
When I get lucid dreaming down, I'll just make myself a room filled with Pizza Hut P'Zones and Taco Bell Grilled Stuffed Burritos!