I can't comment on willpower over everything, but if it is about working out / doing chores / getting to work, I have a hack for you:

Well.. it isn't really a hack, but something to remind yourself every fucking time that you're stalling. All you need is enough motivation to do it for 5 minutes. FIVE MINUTES!

Thats enough motivation to basically start an activity and forget about everything else in the process, and getting on with it. Just start doing it... FIVE MINUTES!!!