When you call 11 months from each day of your vacation you tell MS on your initial call you will be calling each day and to leave the reservation open until all your days are booked. this will keep your reservation under one confirmation number.
Thanks, I may have to do that. Our trip in July will have a Aug 1 checkout date which puts our 11 month window on Sept 1 and we will be on another vacation then. Wasn't looking forward to having to remember to call Disney while trying to enjoy the beach!! Now I can book most of it and then if I forget, I can chance the last day or two only. Thanks again.