In EDC a mylar blanket and an orange poncho.

In BOV (I use a vest, rather than a bag) an 8x10 Siltarp, a couple hundred feet of paracord and a foldup saw big enough to cut wood to build a real shelter.

In car kit a North Face 2 man tent, and a large plastic tarp.

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Knowing where you're going is NOT the same as knowing how to get there.