Bring your own stroller -- it's much, much easier than standing in line every day. Plus you can't wheel the rentals out of the park, or use them at Downtown Disney or when you get off the bus to walk back to your room. A deadweight child can be very heavy after a long day in the parks, especially if you have a long walk back to your room. They are very easy to get on the plane. They take the stroller at the gate and have it waiting for you when you disbark.