I used to work at Disneyland so I don’t know how our crowd levels compare to Disney World’s
In my experience, Tuesdays are the slowest days, followed by Wednesdays
Go during non-peak periods of the year. Jan, Feb, and the first half of Mar, Oct, and the first half of Nov are the slowest, but avoid holiday weekends during those months
Go early as possible, but call ahead to see when they’ll open to the public. 3 or 4 days a week, hotel guests get to go into the park an hour earlier. I believe it was Thursdays, Saturday, and some other days.
Call ahead to see if they are having any special events. Occasionally the park closes early for cast member (employee, ugh :dubious:) parties, and other events.
There are always some rides down for refurbishing. Make sure you know which rides will be down when you go. Those things could take months so dont think that the ride down today wont be down next month when you go
Many shows like Fantasmic, the fireworks, or the Aladdin show in the Hyperion Theater are only done on weekends during non-peak periods. If you want to see them, find out their schedule. By the way, try to talk to at least 2 people at the park about it. Some of the people working with me wouldnt know the schedule of something if it bit them in the ass. However I’ll give more credit to info center people whose jobs are to know this stuff though
October might be when they take the Haunted Mansion down to convert it into the Nightmare before Christmas monstrosity. If you want the classic look, go before October
Bring food in. Security’s not going to take your burger or something. I’ve never had problems bringing food in there nor has anyone else I’ve ever known but people seem to get this idea that we dont allow outside food. If you can bring enough snacks to skip a meal, that’ll save you at least $100 for a family of 4