I don't get it. Unless you are washing a baby why would anyone want to use Castile anyway? It just doesn't clean very well. However, I started hardening any soap that has oo in it by adding salt. I have to add salt anyway due to hard water so I salt to accommodate the slimy oo. I still don't get it though. Castille doesn't really lather and takes years to harden properly as a bar soap. The only place I really like it is as a mix with coconut oil for a base for shampoo. It makes pretty good shampoo bars too. Will someone please tell me why I should even like Castille?