When we went last May my son was 2 still in diapers. I put all the diapers, wipes, change of clothes, snacks, ponchos, kleenex, wet wipes, etc in a backpack and just left that in the stroller basket all day. I used my vera bradley hipster bag to carry on me and I only had my wallet, camera, sunglasses and hand wipes. I left the backpack in the stroller even at the stroller parking and no one touched it. I did put a beach towel over the stroller since it was hot and so I could find the stroller.