I know I'm in the minority, but even with the 2-yr-old, I wouldn't bother bringing anything from home and just rent double strollers your entire stay. All the parks have them -- even Downtown Disney has double strollers you can rent. I've never thought it a "hardship" to carry my child the short walk from my resort room to the bus stop (and many times, especially in the mornings, they had enough energy to walk that far on their own). We've been to both WDW and Busch Gardens Tampa several times since the youngest was 18 months and the oldest was almost 3, and we've always left our stroller at home & rented doubles. They're much roomier than a regualr double stroller, and once my kids were in that 2.5 - to 3 year old range, they were always cramped up in the double stroller. The only double stroller I've found tht worked past that point was the side-by-side double umbrella strollers, but the rentals at WDW are SO easy to control and ride like a dream -- we always look forward to renting them, and my kids are 4 and 6!!