There is always the pool at your resort.
You might also want to check into the petting zoo, free movie and campfire sing along over at Fort Wilderness Campground... they also have a very reasonably priced buffet over there at Trails End Restaurant.
People watching at Downtown Disney or the Boardwalk is also cheap entertainment, and lots of fun. The kids will enjoy the playground at DTD between the
Lego shop and McDonalds.
Ride the boat from Downtown Disney to Po-R in the evening and catch Bob at the River Roost Lounge, then catch the boat back to DTD when you are done--- the boat stops running at 11 pm, I believe.
Resort hop and check out the theming of the other resorts.
Sit on the beach at the Polynesian and watch the Fantasy in the Sky Fireworks--- they have some nice 2 seater swings on the beach, there.
Go to the lobby of the GF, and listen to the live music.
Listen to the African Storyteller at the AKL.
Visit the Butterfly Garden in the back of the Arcadia House at PO-R.
Visit WL and make a game out of finding all of the hidden Mickey's.
Ride the Friendship boats between the Epcot resorts, and the boat from the MK to WL and Fort Wilderness.
Ride the monorail, just for the heck of it.
Most of all, have a great time!
