Since Dining Reservations can now only be made 90 days prior to your arrival, you should start this part of the process no later than 100 days prior to your trip.
Here are the steps that you should take to aid you in your planning:
1. Go to http://www.disneyworld.com/ to get the latest information on Park Hours and Extra Magic Hours for each of the Parks.
For an example let’s plan a trip for May 16th – 23rd (roughly 100 days away). We will plan on arriving on Saturday and departing the following Saturday, since that is the most popular day for arrival.
The Extra Magic Hour schedule for that week is as follows:
This strategy involves seeing where everyone is going the day before and heading to that park the next day. Rarely do people go to the same park on consecutive days. This example is based upon 2 days at the Magic Kingdom and Epcot, 1 at Animal Kingdom and Hollywood Studios, and the 7th day spent returning to the favorite between AK and DS.