7. Folding chairs
This one is a no-brainer. Disney World is a fabulous, fantastical, magical place. It is also enormous. It is further the vacation destination of some 50 million people each year. Can you imagine the cacophony that would ensue if each Guest brought a folding chair into the parks? Guests are not permitted to bring folding chairs into the parks because they can present a safety hazard, as well as obscure the view of other Guests. Besides, would you really want to lug around a folding chair at EPCOT all day? Hollywood Studios? Magic Kingdom? Good heavens, no!