When Universal is our main "reason" to be in Orlando, we say do 5 days (and we stay at a hotel with express passes included). But, we like to swim at the hotel, my kid can spend three hours just at Knockturn Alley, and I like to eat sit-down meals here and there (and we do all three parks). HOWEVER, this Christmas, when it'll be PACKED, we decided to add a couple of days to a trip just to add Universal. But, we only plan on doing the following: staying in line forever for Hagrid, seeing castle show, spending three hours in Knockturn Alley (ok, really that may be overboard, but my kid would do it!), and drinking hot butter beer. Anything else will be a bonus.