You’re on vacation. It’s important to relax and have fun. But like any trip, there are some things that you generally need to plan in advance when you go to Walt Disney World: what parks you want to go to, where you want to stay, where you want to eat and what rides you are going to want to use your Fastpasses on. You can just wing it and probably have a good time, but you’ll end up wasting time in a 90-minute line for Space Mountain when you could have used a Fastpass.