The more you understand how WDW operates the less stressful your trip. Its not about planning every second of your day, I actually discourage that. But you need an outline of your day, and you need to understand where you are in the park and where your reservations, rides and lighting lanes in order to have an effective schedule.

There are four separate theme parks and two water parks at Walt Disney World, an outdoor shopping area, and a sports complex. Your theme parks are Magic Kingdom, Epcot, Hollywood Studios, and Animal Kingdom. Typhoon Lagoon and Blizzard Beach are your two water parks. Disney Springs is your themed dining, retail, and entertainment center and ESPN Wide World of Sports is the sports complex.