I sometimes go off track on the weekends too, esp yesterday because we had a b-day party and we were away from home most of the day, which was unexpected.

If you can, try to have your food diary filled out in advance each morning and that can help you keep on track.

What helps me is starting the day well. I know that sounds sort of silly, but I have a protein shake after my workouts and before work every day. On Saturday, I keep the same routine, doing my cardio workout in the morning and then having my shake. Starting my day well, helps me stay on point. I try to follow a similar eating schedule (if I want a morning snack, I have one; I try to have a similar lunch as during the week). If we have somewhere to go, I either a) eat before I go, b) bring a healthy snack (e.g., banana, granola bar, apple, etc.), and/or c) make a plan for what I will eat before we go. This helps me manage my overall calorie amounts. In addition, if I know we're going out to eat, I plan accordinlgy the day before as well as earlier that day (e.g., eat less calories). So far, that's helped. I have gone out to eat at least once every weekend.

As an aside, I also do not follow Jillian's diet. I find healthy foods that I like and those that I can incorporate into my days more easily. This keeps me feeling satisfied and not needing to go nuts on the weekends (which, in the past, when I was on a strict diet, I struggled terribly with).

Hope that helps!