I still have my first, first-aid kit. The small plastic Boy Scouts of America kit went with me everywhere, but once I started diving solo into more challenging terrain, especially in mountainous areas, I replaced my Scouts first-aid kit with a personalized kit focused more on the injuries I might sustain while donning a backpack. Preparing for every possible emergency scenario with a minimalist first-aid kit is nearly impossible, but several companies offer customized kits, or you can build your own as I have. My kit sits in a compartment in my backpack and accompanies me on every trip in the field. (Iron It Out: " Determining Who Shoots Firs