Dry Your Soap
If you want to make your soap bar last longer, there’s one simple way to do this: let it dry completely before using it again. More than that, if you keep it on a soap saver that prevents it from sitting in water or in a soap dish with holes, away from the moisture and steam caused by the shower stall, you can also prolong its life and cut down on costs as well.
Extra tip: Wash with soap and a washcloth or loofah. It will not only clean your skin better, but you will also use less soap.