@theultimatehumanofficial: One of my simplest travel habits has nothing to do with what I pack. It's what I don't eat. For most shorter flights, I prefer to fast and focus on hydration rather than eating just because food is available. Flying already puts your body in an unusual environment, and I don't want to add a heavy meal and digestion on top of it. It's a small change, but I've found it makes a big difference in how I feel when I land. Next flight, pay attention to when you're eating, not just what you're eating.