Wow. That trip was ridiculous (in the best possible way!). We returned a few days ago from GKTW and it was everything I hoped it would be for my daughter. She was crying the night before we left, so I know how much she loved it. The volunteers were very sweet and I was moved by their willingness to help other people. The Village had so many fun things for the kids at all hours of the day. The guest access card at Disney/Universal was amazing. Not only Fast Access type quickness, but sometimes people took us to the exit or handicapped entrance. We were toting along a 2-year-old old who needed an afternoon nap and with the short waits there were a couple of parks we were able to knock out in one morning. Huge difference in time. A couple of weeks ago I asked if an adult could use the guest access card... well, it was totally a non-issue. I used it a couple of times on big rollercoasters with no questions asked. Another way to save time and keep the family moving on. Very cool.
We loved the character visits at GKTW. I had expected those to be crowded, but it wasn't. Loved being able to do that around breakfast and then not need that time at the parks. Although, after waiting in a line to see Tigger at Hollywood Studios, an employee told us we could just walk up and ask to not wait in the line (we didn't know this until the end of our trip since we mostly took advantage of GKTW character events). The most insane part of our week was when my daughter got to spend close to 45 minutes alone with Tinkerbell in the Wish Lounge. I'm guessing this time was supposed to be shared with other children, but we were the only ones there. Knowing how long the lines can be in the park for a few minutes with Tink kind of blew our minds. They got to do each others' fingernails and makeup. After a really difficult 18 months dealing with my girl's cancer, this moment felt like everything was turned upside down for the better. And it showed how Disney pretty much rocks in helping these kids.
We purposefully chose the last week in February for the weather and smaller crowds. Looking back, having that guest access would probably make any time of year a lot easier.
We left unsure how to even repay something like all this. I'm pretty sure we'll be doing volunteer work down the road. If not GKTW, definitely a local chapter of children's cancer car.
(well, I had a pic to post, but my post count is not high enough...)
That happened to us several times on this trip.
As you write I am sure even more will come back to you! 
