L.S.
We went last summer and rented a double stroller, very reasonable. I rented a single stroller at the Disney Studios, bad mistake as my 2 kids fought over who gets to sit in the single stoller. We rented the double at Disneyworld and I thought my 3 year old would be the one to use it more, but my 7 year old and my niece, 11, used it more than my 3 year old. We flew as well and I didn't bring a stroller with us. Have a great time.