Gather around the campfire with chip & dale for a disney movie and marshmellow roasting. This is a free activity everynight at Ft Wild. Use a car or bundle up and cruise the loops many of the campers go all out for xmas and decorate their sites. There is an AMC movie theater at Downtown Disney. Tour the various hotels and view their holiday decorations and gingerbread displays. Many offer hot apple cider and roasted chestnuts. Go over to Downtown Disney and shop. The lounge at Port Orleans Riverside has a wonderful entertainer, he is hilarious and gets the whole crowd involved in a sing along. Dont forget to order a Mickey mouse drink for your 4yr old. The lobby of the Grand Fla also plays music in the lobby with a old fashioned jazz band or pianist. Sip on cocoa and relax in the lobby, they also have a castmember choir that comes out and performs xmas carols every evening.
EPCOT is still open until 9pm. Their holidays around the world are great as well as the holiday fireworks display. Dont miss the Candlelight Processional or the Osbourne Lights.
Hope this helps