Recycle Leftover Soap
Make new soap from the soaps and shampoos that the guests have forgotten in the hostel. Tip: soak the soap bars in water for a couple of days and then mix them with shampoo and liquid soap in a blender. It then becomes a liquid soap that may be used to wash clothes, as well as soaps in the bathrooms.
Examples: Chapada Hostel in Lençóis