Most of us are best served by being a bit of both: supplies at home for the likely emergencies, and a few skills for the moments when you are away from them. The skills that matter most are simple and can be learned in a weekend: treating water, staying warm and dry, first aid and CPR, reading a map.

Be wary of TV-style survival tricks. Many of them, like drinking from a cactus or sucking out snake venom, make things worse. Our guide to survival myths sets the record straight.

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