We only have one day to enjoy the parks (Dec. 21), so we're trying to figure out the most efficient way to get to a few key attractions. Most of the day will be spent in MK, then a quick stop in MGM to see the Osborne Lights at 6:00, followed by Epcot/Illuminations. What would be the quickest way to get from park to park--boats, buses, our rental car? We'll have a stroller, DS and DDs in tow--ages 11, 5, and 2 1/2. If our car isn't the quickest option, we're thinking of parking it near the Int'l Gateway in the A.M. and taking WDW transportation to MK, MGM and WS. Then after Illuminations, we could exit out the Int'l Gateway to our car to avoid the massive crowds. Any words of wisdom out there would be greatly appreciated!