What I like about the day planner is that there is a place on each day for you to jot down what dinner is that day. In addition there are sections for each child so you can keep track of that schedule as well (and your spouse's!) These agendas come in a couple of different sizes and various colors.
Image from momAgenda
In addition to these wonderful day planners there are a number of other products that they offer such as journals, stationary, notepads, organizers, etc. You can also download the agenda for your iPad.