Our kids always do a chart with all of the restaurants they want to go to. We're usually at WDW for two weeks at a time. This list is heavy on old favorites. We like to try one new restaurant on each trip; eat off property at least once; and plan a meal or two in the room for the kids and on our own for mom and dad (we're Vacation Club members, so there's a kitchen ijn the room). One of us will call before our trip and make the reservations, doing the necessary juggling. This process gets us to lock in our plans. If for some reason they change, we call and cancel our reservation. The other posters are right, it's really not a good idea to double book.