I meal plan once a week! Any more than that and to many things come up, or get in the way, and the plan gets blown. As it stands now, I plan 5 meals, and leave 2 open. We always have things pop up so having 2 open nights helps with that. If we end up being home for all 7, we do a leftover night or a fend for yourself, or I make something I have here - I always have stuff on hand for tacos, or spaghetti, or chicken and rice, etc. regardless of the meal plan.