Funny how many different directions this question can go—shows just how personal prepping really is. For me, if I absolutely had to pick, I’d say a headlamp with extra batteries. Sounds simple, but reliable light has gotten me out of more tricky situations than I can count, especially during winter storms or late-night walks home when the power’s out. Freeing up your hands is a game changer for setting up camp, first aid, or even just digging around in your pack.
I get the love for knives and bandanas too (they’ve both earned their keep in my kit many times over), but I’ve found that people tend to underestimate how quickly darkness makes everything harder. I keep a few old-fashioned glow sticks tucked in as backups, but once you get used to a hands-free light source, it’s tough to go back.
Anyone else ever had their headlamp battery run out at the worst possible time? Learned my lesson about packing extras after a cold night geocaching near Lake Superior… not an experience I’d want to repeat!