Could willpower be the missing link in why some succeed and others don't? Check out this intriguing read on the subject. And wouldn't you know it - it's all about those preschool years, and how your genetics combines with your upbringing. But all is not lost if that period of your life wasn't so great, as they've done an experiment briefly detailed here that shows that a couple weeks of brushing your teeth with the wrong hand can kick-start a little willpower.
My partner's singing "Lady Willpower" now due to reading over my shoulder. Alas, that song's just about Gary Puckett and the Union Gap's seeming obsession with songs about trying to guilt young women into making out with him/them.