I never get rid of anything that I think I might be able to use in the next 100 years,
but there are material that I know I will never use and those I take to the Thrift Store and what they can't sell/give away they sell to a place that makes them into rags. So none of it goes to waste.
I also give the scraps from my serger cuts off, to the Thrift Store for their rag bag.