Resort hopping is definitely one my favorite things to do if I'm not going to the parks
-Bus to MK, hop onto the monorail, check out each of those resorts (bonus points if you boat to Wilderness Lodge & Fort Wilderness, extreme bonus points if you end the night off with Hoop Dee Doo, or even chip & dale's campfire singalong and the movie lol) grab a snack and a drink at each location, explore, relax, take some pictures.
-Walk around the Boardwalk, check out Jellyrolls, the Yacht & Beach Club
-I always love Animal Kingdom Lodge, make a resso at one of the restaurants (or go for the QS) and spend some time checking out the animals!
-Downtown Disney has a LOT of stuff to do too! And you're just a short walk away, hit up some shopping, grab a bite and a beer at Ragland Road, check out the Hangar Bar, grab a movie, definitely get some chocolate from the new Ganacherie (sp??)