Summer means vacation and vacation means travel. Whether day-tripping or driving cross-country, traveling with kids can be hard. Kids get irritable. Grumpy kids fight more, get on your nerves and may even cause accidents. Adults do too. Usually this stems from boredom, hunger, exhaustion, lack of activity, more than bad behavior. Most travel drama can be minimized by keeping everyone fed. Pack a cooler of healthy snacks to keep them happy. Whether driving, flying, sailing going by rail or bike, these portable snacks travel well. I still pack snacks for my adult kids when we travel together. Better than paying sky-high (pun intended) airport prices. Here's an A-Z car snacks menu that's low sugar so kids don't get wild, low salt so they don't too get thirsty, high protein to fill them up and high fiber so they don't get travel constipation (that's a thing. I used to get it at summer camp). Healthy Car Snacks for Traveling With Kids, From A-Z