New Year's resolutions can be tricky. That's why I rarely make them, but this year I decided to. Why? Because a friend suggested a way to make a new year's resolution fun. Many people make resolutions to try to improve parts of their lives they struggle with. But often they focus on what the "should" do not what they want to do. Eat vegetables every day. Go to the gym once a week. Learn a language. The challenge comes when you miss a day or a week, then one more, and pretty soon it's March. S...