9. You Will NEED Reservations
It might be tempting to head into your vacation without making reservations. We get it, tying yourself down to a specific time and place can seem so regimented for a vacation. However, because the parks get so busy, and because many of the restaurants are so popular, you are going to need to make dining reservations.
Luckily, this is fairly easy to do through the My Disney Experience app, and most reservations can be changed or canceled as long as the changes and cancellations are made at least 24 hours in advance.