No matter how consistent you are with your habits, it is inevitable that life will interrupt you at some point. Perfection is not possible. Before long, an emergency will pop up--you get sick or you have to travel for work or your family needs a little more of your time. Whenever this happens to me, I try to remind myself of a simple rule: never miss twice. If I miss one day, I try to get back into it as quickly as possible. Missing one workout happens, but I'm not going to miss two in a row.