I found this article to be fascinating. It discusses waste, recycling, and the importance of hygiene. Many people around the world face death and illness because of the lack of hygiene and cleanliness. One organization, Clean the World, recycles soap products from hotels to provide to people who need them. Read more about Clean the World:
http://articles.mercola.com/sites/articles/archive/2017/04/22/recycling-leftover-hotel-soap.aspx