We have unexpected vacation time available the week between Christmas and New Years. We are considering a trip to Orlando. I am curious about the crowds and such this week. Does anyone have experience with this last week in December? Will the parks be too crowded? We will probably stay off site and are looking at probably two days at Universal or IOA, a day at SeaWorld, and maybe a visit to Cape Canaveral. May spend a day or two in Disney World too. I don't want to spend all day in lines and fighting crowds. Our last two visits were to Disney World in October and September and the crowds were small--had virtually no waits at all.