Have not booked times to visit the various attractions in the area (there are certainly lots of attractions at Disney).
I love planning my vacations, and yes Disney is different, but I disagree with the idea expressed here (and by many others, sorry I'm only quoting this one post) that only at Disney is there a marked advantage to those who plan a lot and far in advance. A few examples off the top of my head: When we went to Germany for our honeymoon, the fact that I had planned meant that I had reserved our train tickets between Munich and Berlin for 30 Euros each instead of 100, because when you book specific trains and times up to three months in advance you can get these high discounts. I also knew that I wanted to visit the Parliament in Berlin, and to do that I had to request a tour, choosing dates and times, supplying our passport information; you don't just show up and expect to join the next tour group. When we wanted to have a camping spot on the beach in Prince Edward Island, and we really wanted that particular spot, I booked as soon as Canada Parks allowed bookings, namely in April for an August vacation. I could go on, but you see what I mean?
Yes, these vacations were not all planned to the detail like some people plan their Disney vacations. I think we need to remember that at WDW you are in a kind of enclosed environment. If you're in NYC and want a sit-down dinner and the first place you go to is full, you'll go to the next place, then the next, until you get to one that can seat you. If you're in MK, you have I believe a total of 6 sit-down restaurants. You cannot fit every single MK visitor into those 6 restaurants each night. That's OK, because some people are happy with QS, others will go to a resort restaurant, etc. But let's face it, most people will either not have a car and/or won't want/be able to leave the park for dinner, and will want to eat at one of those 6. And a lot more people want to eat at BOG or CRT each night than those restaurants can seat. Because people want to be sure to eat there, most of you planners here are doing exactly that: securing that ADR as soon as you can because you don't want to not eat at this restaurant (or any other WDW restaurant).
As I see it, for all the complaining that Disney is forcing people to plan to have a good time, it seems to me they are just trying to provide tools to make their guests happy. Granted, I haven't been to WDW during peak-crowd-season. But 2 years ago, there was ONE thing on our can't-miss list: CRT. I booked that one at 180 days. We booked everything else day before or day of, based on what had availability for our groupe. This year, I had my heart set on BOG dinner on EMH night, and PPO at Crystal Palace. I booked those two (without any problem) around 170-days before our trip, and the rest of our meals were booked, again day before and day of. Did it happen that we looked up a restaurant we wanted to eat at but couldn't? Yes. Did it ruin our vacation? No, because those restaurants weren't important to us, we've just added them to our "next time" list. And if we had not planned to return to WDW in a few years, I probably would've booked them earlier. And the same happens to restaurants where I live. A very popular restaurant here has a wait list of about a month if you want to go on a Friday or Saturday night, so if we want to go there, we call a few weeks ahead, and if we want to be there for a special event at a specific date, I call a few weeks before that to be sure.
This is how I see Disney planning. If something is important to you, Disney is providing tools (ADRs and FP+) to help you plan and make sure you get to do those important things. For visitors (like me) who have a few things on their important list and are happy with wherever after that, this works very well. But I can see how it would be nerve-wracking to those who have a longer list of important things, or for whom everything is important. Do whatever will make you happy on your vacation, but don't think that people who don't plan that way will have a miserable time. Because that's the other thing: we hear about the people who didn't plan and were miserable, but how many of us only plan a little and have a wonderful time? I think this is a case of a very visible minority (who don't plan, don't listen to any advice, and then complain that Disney sucks), but out of the thousands of people visiting WDW each day, I can't believe that all those who had a good time had a by-the-hour plan, and that everyone who didn't have one will vow never to return. Mostly because I don't fit into either categories, and I have family and friends who also don't.