One of the hugest ways that will make an impact, which is only in its infancy right now, is corporate accountability. Consumers at the buying point saying, 'Can you certify to me that this product is slavery-free?' And most cannot right now.
Historical costumes from the 18th and 19th centuries look so complicated, but when you see the patterns, it's very systematic. I've always been impressed by how the patterns economize the fabric.