I have the equivalent of a Mexican Hat Dance for those who need to do all of the Disney thing in one day. The usual one day ticket gets you into only one area. A multi-day pass lets you into all. When I was in the big O there was a nice secondary market in hotels and 7-11's for remaining days on multiday tickets at less than the one day price. So we each bought tix with one day left. Then we got up early and went to the Magic Kingdom - which opens an hour before the posted time - and went through the rides before they got busy (Pirates and roller coasters first). Then over to the Studios at lunch and then to Epcot for dinner and onto the rides there - the older crowd goes home early. So you get all three. The bad part was the charter airline I arrived on was bankrupt the next week and they were proving why. Have fun - if you make it a challenge you can enjoy almost anything.