Does anyone know of a stroller with a fairly high weight/ht limit? My daughter hasn't used her stroller in years (she's four next month) but due to her walking issues at the moment, she can not walk long distances and I can not carry her. I'd love an umbrella stroller of some sort that collapses easily and I'd like it to be fairly inexpensive. I am HOPING we can get this issue sorted out and she won't need it but at the moment, she just can not cover long distances without a few falls (like from a car in a parking lot to a store, or from a parking garage to a doctor's office entrance) and carrying her fifty pound self (and she's tall too) is hard on my back and my husband's. A stroller would be a HUGE help for us.