We are staying at WDW 10 days, when you purchase an 8 day ticket do you have to use that ticket 8 days in a row or can you split it up? We are planning on going to Universal Studios to the Harry Potter area during the week we are there. We want to do WDW, US, WDW if they allow you to split admissions like that. Also, what is the best way to get to Universal and then back to WDW when your staying on site and used the Disney transportation to and from the airport? Thanks.