Other than the obvious, to keep your feet warm and dry, socks can be used as:
- a filter / strainer for water
- gloves
- a holder for something hot
- a bandage or sling or to secure a bandage
- pouch to carry things
- fill with dry grass and use as a menstrual pad or diaper
- ear muffs
- heat pack (put warm rocks inside)
- as a mask for smoke, etc.
- as a weapon (fill with rocks and swing)
- use as sleeves or knee pads (cut off the top toe part of the sock)
- use as lashings
- tinder for fire starting
- use to tie your hair back
- stuff and use as a pillow