Last time we went to Disney I had all the kids with me so we had 2 full size strollers that we could use to store all of our stuff. This summer I'm taking just the oldest 2 kids (9 and 8) and I'm not sure if I should plan on lugging around a backpack all day for water,etc. I'm not thrilled with the idea of carrying around a backpack in 90+ weather and humidity. Are there any other suggestions for dealing with this?