We tend to follow the plan until lunch.... on most days... I spend months and months and months planning our trip down to the small details and usually it is thrown out the window at a moments notice. Like if we get down to the bus stop and our chosen park has more than a bus full headed that way we will scrap the day and make new FPs for what ever bus we hop onto while on the way to the park.
Or we are at a park and we decided that after we ride our last FP that we just want to go chill at the pool for a few hours, we just do it. It is a vacation and we will enjoy whatever we decided to do and if we don't follow the plan that I created that's okay too. I do make maybe one ADR a day (usually not that many) and our FP's are booked early so I can book more as soon as we use the last one.
Funny story though... on my very first trip (many, many years ago before paper Fast passes went away) I had a binder with our lamented plans that I had spent MONTHS on, and I brought that binder with us into each park. It was in the bottom of our stroller. We followed that plan like the world would end if we deviated. Then a ride was down. (Not that it matters, but that ride was Pirates) Well that turned into a melt down a short time later for me. I sobbed
in the middle of Adventure land because we were not following the PLAN. It was the end of the world.
Well... my very laid back husband looked at me like I was nutty (I was) and took my binder, that was in a death grip in my hand as proof of our plan that was NOT being followed, and tossed it into the nearest trash can.
All that work! Just tossed out without a second thought.
But I can honestly say the remaining 4 days of our trip were so amazing and not having a plan was the best feeling in the world. I wouldn't go in without a plan at all to start (because I love planning) but when we toss out the plan I have a much better reaction then that first trip.