Sock:

sock (and the benefit of dry socks and underwear shouldn't be
underestimated)
mitten
water filter
weapon (put a stone in one)
sling (as in throwing)
bandage
pot holder
handkerchief
dish wipe
storage
carry a condom filled with water
garotte (if a long one)
etc etc

The Sock



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The world is in haste and nears its end – Wulfstan II Archbishop of York 1014.