Now that we don’t have any toddlers I’m toying around the idea of not being a backpack. We won’t have a stroller to store it for rides so I’m not sure what we would do with it for EE or SM... I know there are lockers but I really don’t want to rent one. Defeats the purpose of carrying around waters and snacks, right? Are there other options to store backpacks with no valuables left in them?