Packing a good carry-on isn’t about stuffing your backpack with every travel gadget you own. It is about keeping the things you truly need safe, organized, and easy to reach during the flight. After years of traveling with my family, I have developed a system that keeps me surprisingly organized on airplanes—even though organization does not always come naturally to me! I use a small Fjällräven Kånken backpack and give everything a specific place. My passport stays in the front pocket, medication and electronics remain safely inside the main compartment, and one small pouch holds everything I need once...