[SimonV]

Take a walk around Lake Eola at night; watch the Winter Garden Golf Cart Parade (yes, seriously!), and visit Winter Garden for its lights anyway; tour the Magic Kingdom resorts by monorail; get tickets for ICE! at the Gaylord Palms Resort (it costs, but is well worth it); tour the Rosen Hotels for their Xmas lights presentations; spend time at Disney Springs (ideally in midweek when it's not TOO busy) and take in the Christmas Tree Trail; and spend some time at the Mall of Millenia, which does a fabulous Xmas overlay and visit with Santa!

For something really different, consider the amazing Singing Trees presentation at the First Baptist Church: firstorlando/events/singing-trees/