we do crackers, water, flavoring packs, cereal bars, etc. Don't do fruit snacks, if it's hot, they melt. For crackers like cheezits, I buy in bulk and do sandwich bags. Makes it easier to put a bunch in the bag. I bring cereal bars for missed meals from napping or tantrums. Tiny snacks like cheerios of those gerber fruit puffs are great for keeping a toddler entertained. Sometimes, the snacks are actually preferred over kids meals. My kids would rather eat out of the baby bag than off the menu. Whatever. works for me and my wallet. I bring several grocery bags to the hotel room. I buy the bulk packs of water from WM. Every morning, before we leave, I prep the bag with the day's snacks and water.