Denim and thick cotton fabrics - shred them up, they make good insulation!
"second" wool from sheep/goats/alpaca - wash, card, stretch. Also great insulation. (this includes that old wool sweater that gramma gave ya last year... I ain't sayin' nothin!)
that's all for now!
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"¿ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"
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