You've heard enough about mirrors. :P

Space blanket. Heat sheets are better but probably harder to find there; 2-3 large liner bags will do if you have nothing else.

Dental floss. Maybe a meter or two of wire, and/or zip ties.

Spare socks.

Good pair of tweezers, or better a small pair of needle nose pliers with wire cutters. (Since you are carrying a SAK.)
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-IronRaven

When a man dare not speak without malice for fear of giving insult, that is when truth starts to die. Truth is the truest freedom.