Did you know your old jeans can help charities such as Goodwill and the Salvation Army? Denim is the No. 1 most resold item in thrift shops, and even distressed, well-worn and torn jeans are coveted by fashionistas and collectors of old denim. Even if your jeans are worn beyond fashionable, still give: Unsellable garments are often sold to textile recyclers. So the organizations make money either way. Win-win.