We will be at WDW for 8 nights in mid May. We are considering going to IOA for one day during our stay. We are not planning to rent a car. I'm wondering if it is cheaper/easier to take a cab from WDW property to IOA or to rent a car for one day and pay for parking for one day at IOA. We are not going to decide on IOA until during our trip, because we also may decide to use that day for relaxing at the pools or just doing one of the Disney parks to hit things that we've missed. Any advice will be appreciated! Thanks!