It’s hard to keep up willpower for any length of time. Yes, we can stick to a low-fat 1,000 calorie diet and go hungry for a week or two, but eventually our willpower fades. And yes, we can do exercise we hate for a while… until we run out of willpower. But what about getting up to take the kids to school every morning, brushing our teeth or going to work every day. Those may not be our favorite things to do either, but we do them daily without the risk of running out of willpower. That’s because they have become habits. They are so ingrained in what we do…