Store your soaps in a dry ventilated area. When in use, place them in a soap dish that drains or hanging inside a soap saver pouch to dry (do not let them sit in water), that will make them last longer and will keep your bar solid.
Natural Ramie Soap Saver
This soap saver is made with an all-natural fiber that comes from a Chinese nettle plant called Ramie. You can use it with your soap bar inside and hang it to dry. It will help you enjoy your bar until the last bit.