Piggy backing on yesterday, remember to space out your free days. Yes its OK to have a free day, where you have a little extra here and there, but it is not OK to have a free day 2 days in a row. That is how bad habits are formed. By doing that over and over you get set into patterns and next thing you know you are doing it 3 nights a week, then 4 nights a week. Remember to set boundaries with yourself and stick with it.