6 - DO plan your times for the busiest/hottest times of the day.
If you want to get the most benefit out of FastPass+, then it is a good idea to have selections during the busiest times of the day, which also tend to be the hottest times of the day, too! The mid-part of the day is when the parks are the most crowded. The guests that have slept in are now in the park and it’s still too early for guests to leave to think about dinner or getting kids to bed. If you have FastPass+ during this time you can walk right onto attractions and avoid the lines, and then enjoy the lesser wait times during the slower points of the day, too. In summer and early fall, you can avoid long wait times at popular attractions such as Splash Mountain and Kali River Rapids by choosing a FastPass during the hot afternoon – a perfect time to cool off. The Disney World parks are generally less busy in the morning or late evening, so by selecting your FastPass times in the afternoon, your wait times on other attractions should be less.