when my family and i visit the parks we always have a bag that we carry aroud to hold ponchos, jackets, extra sweat pants that we can slip over our shorts if it starts to get cold, cameras, ect. when we used to take a stroller for my sister we would put the bag in the compartment and just take the camera bag. but now that shes older we designate my dad to be the pack mule.lol. when we ride the mild rides we simply just put it on the floor, but on the faster less mild ones someone usually just tightens the bag around their wrist and holds onto it.