My fam and I just rescheduled our Christmas WDW trip for late Jan and are adding a few extra days so we can add UO to the itinerary. We're going to do UO on 2 of the weekdays (1/25-1/29) to avoid the weekend crowds, and buy Express Passes for both days. We'll be staying at WDW so obvi no EE. Will 2 days be enough time for us to really see and do a lot? What can we do to maximize our park experience? Does it make more sense to do single park tickets or park to park? Think we'll have time to ride some of the big stuff more than once (get the unlimited pass) or will we be really strapped just to get to everything one time? I have one very big HP fan and both kids are thrill ride lovers. Help!