Also, most people use way more soap than they need too (toothpaste, too).
Back in the 1970s, some hig school friends and I took a canoe trip in the Boundary Waters Canoe Area in northern Minnesota. One of my friends brought along some Basis® soap. It is glycerin based soap, and he said it was better for the environment. Don't know if that's true, but for me it is the best soap ever! Honest, squeaky clean (without drying) like when you take a sauna. Absolutely no residue. Back then, I had acne pretty bad. Worked better than any soap the doctor recommended.