We won't go to go to the gym every day. Know why? Because we have a life -- and nothing is ever as straightforward as we'd like it to be. Kids get sick. Work gets nutty. Sneakers get forgotten. The key is to not let these temporary distractions derail us completely.
Whatever your personal intentions are about making such changes, the key is to commit. This means physically signing up now, today. Don't wait until January 1 when the urge, while nice, could quickly pass.