I shopped thrift stores looking for wool garments to cut apart, wash in hot water/cold rinse w/detergent to felt, and then use for wool applique. There were great bargains as two chains of thrift shops have quarter day each week in my area. I rarely go now as my wool stash is adequate. I had so much that I started a wool group and shared my stash with those members. Re-use and re-purpose are wonderful goals.