An acquaintance recently asked for some advice about Disney and here was my response:
I have been to Disney (with kids) several times and am willing to answer just about any question you have. But here’s some of my “best” advice:
There's a book called the Unofficial Guide to Disney, and if you can live with what they ask you to do, could have a huge impact on your visit. It is a plan on how to visit and move through the parks, but it requires that you to be up very early and follow a very strict plan on what order to ride the rides. If this doesn't sound like hell to you (it does to most people), you will save at least a couple hours of standing in line, and maybe several hours if the parks are busy. We use it every time, and although my 17 year old hates getting up, he at least does appreciate the fact that we've never waited more than 20 minutes in a line at Disney, when many will wait an hour or more PER RIDE. Even if you don't follow the plan, I'd still suggest reading the book. It will give you a lot of great hints (especially pay attention to the Dumbo ride stuff if you have young children, as this will introduce you to the "fast loading versus slow loading" concept at the park, and convince you to either get up early to ride Dumbo or ensure your children never even see the ride

). You should also understand fast-passes as well as you can before you go, because to not use them to their fullest is just about the biggest sin you can commit at Disney.
If you can, stay on Disney property. It's more expensive, but it gives you an "easy option" of taking a break in the middle of the day to go back and rest, nap & swim. This is especially good with young kids, and kids often comment that the pools are their favorite part of the trip (this was advice we read in the book many years ago and was both amused and saddened when our kids said the very same thing).
Because we go back from time to time, we buy tickets that never expire and allow us to "hop" from park to park during the day. These are very expensive, but in 10 years of going, we have just recently bought only our 2nd set of tickets. One of the benefits of hopper passes is that you (or another adult or two) can jump over to Epcot for a beer if things are getting too stressful. It would also allow you, if you wish, to spend the day at one park but watch the fireworks at another (contrary to popular belief, the Magic Kingdom does not have the best fireworks – we like the show at the Studios the best).
Don't fall for the "cheap" tickets you'll see everywhere, unless you really want to spend half a day listening to a time-share pitch. If you're going to be there more than a couple days, look into buying season passes. They may still be more expensive (I don’t know – but it is for FL residents), but living outside King's Island, it only takes us 2 visits to get our money back on our season passes.
The Animal Kingdom is the one park that you won’t miss going to, and if you decide to go to several parks, “save the best for last”. That way the kids aren’t too disappointed (taking kids to Epcot, for example, after having been to the Magic Kingdom or the Studios will likely disappoint them).
Buy (or bring) an autograph book for each kid and plan some character “meet & greets”. If your kids grew up “Disney”, this will be especially entertaining for them (and is one of the cheapest forms of entertainment you’ll find).
If this is your first trip and like me, you grew up going to Cedar Point, prepare yourself for a very different experience. Cedar Point is a “thrills” park, while Disney is an “amusement” park. Other than maybe the Rock & Roll Roller Coaster at the Studios, nothing at Disney will touch the roller coasters at Cedar Point. It’s just not that kind of place (and as I mentioned before, no beer is sold ANYWHERE inside the Magic Kingdom).
My favorite thrill rides at Disney (both at the Studios) are Tower of Terror and Rock & Roll Roller Coaster. I like Tower of Terror, my kids like Rock & Roll better.
Don’t be put off by rides like Winnie the Pooh & Peter Pan at Magic Kingdom, these are visually some of the coolest rides in the park (and yes, go ahead and ride “Small World”, but I wouldn’t wait in line too long for it).
If you have been before, let me know and I’ll share a couple tips for “veterans”. For example, in the ride Winnie the Pooh, there’s a picture on the wall showing a toad handing Rabbit a piece of paper. You’ll likely never notice it unless you are looking for it, but it’s actually depicting the ride changing from “Mr. Toad’s Wild Adventure” to the Winnie the Pooh ride (the paper is the “deed” to the ride). Disney is filled with stuff like this if you know where to look.
You’re going to spend a lot of money on this trip, so the more prepared you are, the more value you’ll get for your dollars. ENJOY.