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Cold weather camping?  Here’s a simple trick for making simple hand warmers.  Stick your hands in a pair of light socks and mark where your fingertips are.  Take a scissors and cut holes out there.  You can now wear them on your hands as cheap hand warmers.  Next time you need to tie your shoes in the snow, simply remove your pair of gloves with these on and you don’t have to completely expose your hands to get the dexterity you need.