Another vote for the Leatherman Wave. It's the one and only tool in my kit that I've used to make a living with, and it is my security blanket abroad and at home. If there was one thing I would want with me to get by in tough situations, my LW is it.
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The ultimate result of shielding men from the effects of folly is to fill the world with fools.
-- Herbert Spencer, English Philosopher (1820-1903)