Research has proven time and again that rather than relying on willpower to resist temptation, we’re better off figuring out how to make good behaviors more gratifying in the short-term. Big payoffs far down the road just aren’t enough to keep us motivated. The Mary Poppins approach takes the fun that might typically distract us from our goals and uses it to transform an obstacle into an enticement—suddenly we want to go to the gym, focus at work, eat a healthier diet, and study harder. That kind of desire is a powerful motivator for change.