Have you been through all of 3 of the DL hotels? Maybe take a stroll through them and have dinner at one of the places there where you haven't been before.
We "discovered" a great little spot to grab a bite to eat and watch the crowd go by. It is by the lockers, almost directly across from the Blue Ribbon Bakery. There are a group of tables and chairs and an ice cream shop I never knew was there until I saw it on a show about an Imagineer who was getting a window added on Main St. So I went searching for the window (and Ice Cream Shop) on our last trip.
It was nice to sit there with our corn dogs and watch the Main Street crowd go by. It is quieter and relaxing. Every now and then you hear little noises from the "shops" that are around you (a piano teacher, dentist etc ...). Actually, I did know that spot was there, I saw it as I rushed past to hurry down Main St. to where ever it was I was going, but I never stopped to really enjoy it.
You could also do a treasure hunt. Someone posted a request for one not too long ago and there were lots of great ideas. You could print those out and make a game of it. I thought about doing it too.
I told DH that I want to spend one entire day of our Anniversary trip doing the stuff we don't normally do, or haven't done in a long time. Like hanging out in Animation Studio at DCA, seeing the Muppets, riding the Story Boats or Casey Jr.