I have a 7 year old, 4 ft tall, 60 lbs, who uses a special needs wheelchair (convaid) for longer distances,mostly places like the mall or the local amusement park,or when she is recovering from a respiratory illness. I may be adopting a one year old, and am trying to figure out a way to transport them both. My daughter is too big for all the double or tandem strollers I've seen. I came across tandem connectors that allow you to connect 2 wheelchairs, 2 strollers, or a wheelchair and stroller. They resemble the connectors for 2 umbrella strollers, but more heavy duty. Has anyone used these? How sturdy are they? How difficult too push, fit through doors, around corners, etc? is the side by side model or the front to back model better? Would Disney allow them to be used (it would be pretty big, definitely too big for lines). Does anyone know a better option? I have seen some nice wagons that look practical, anybody use those? Am I correct that Disney doesn't allow wagons? Looking for suggestions for everyday use, as well as advice on getting through an amusement park.