You are off to a good start! Congrats! At this rate you'll definitely get that money saved.
While some people would look at my list and think it's scrimping, we don't feel we are deprived at Disney. My money savers have other benefits that are every bit as if not more important to me than the money. BTW I have done the "cut every possible corner" routine to take my kids to Disney, and I'd rather make cuts at home AND on vacation.
We don't want to waste too much valuable touring time sampling restaurants because we go when hours are short. We like a character meal or full service restaurant for an afternoon break. B-fast or supper in the room is a time-saver and more relaxing than sitting in another restaurant. (Pizza delivery or something precooked works great, because I'm not cooking on vacation!)
The fanny packs and water bottles keep my kids happy, and ward off a whole lot of whining and complaining.
Staying at a timeshare gave us a huge jacuzzi tub in the master bedroom, full living room, fully stocked kitchen, 2 bedrooms, 3 bathrooms and a home theater for so much less than onsite. I used to be a hardcore stay onsite gal, but it's so nice to put a movie in for the kids while DH and I head for the jacuzzi. We need our alone time to survive.
My point being that you have to decide what cut-backs work for you and which feel like real deprivation. There's nothing wrong with not getting everything you want, but what works for us might not for other people. Keep the Grand Floridian, we want our romantic tub, plenty of space, and adult quiet time!