I checked the Best Days and planned which park and when. A couple of days we will be at a busy park, such as EPCOT on the start of the F&W festival but we have lots of time so we will not be fighting for the big attractions with the crowds.
I then plan our agenda around scheduled shows as those times are set in stone and most other things can be fit in around the shows and parades.
No early days after late nights is an iron clad rule.
Since it will be hot weather I have planned attractions, shows and meals for the hottest parts of the day so that we will miss some of the worst of the heat.
After deciding all that I see where we are likely to be at any given time and figure out where we would like to eat.
I usually allow one down day for each week or ten day period as weather happens as do other things.
Those days can be used to catch up if we miss something on our schedule or to do other things that we have not done on any of our trips.
We are going for an extended time (20 days) so we will have plenty of time to get to most everything we want to try, attractions and food.
Everyone is different as is each trip. Do what you wanna do, it is YOUR vacation!!
Slightly Goofy