Efficiency rules, and not just because anything wasteful is rather distasteful. No it rules because of hot shit like this BioLite CampStove—a little outdoor burner that burns sticks and uses to the heat to roast marshmallows and charge your USB arsenal. While it is, in many ways, plenty sad that people bring iPhones and the like camping with them. If you were to get lost, it would feel pretty good to have one of those and one of these in your rucksack.
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