FarmerChick: if I continued to use my old soap, yes, it probably could have killed me because I had a huge infection.
See ... I'm allergic to a chemical that's in almost all soaps and shampoos (among other things). I have several fingers that are raw and bloody and infection from this allergic reaction (I keep them bandaged). So. although I use a washcloth and just water pretty often ... I only shower when I get almost-ripe, or when I'm really hot in the summer I'll take a cool shower. My long hair is fine as long as I keep it in a braid or bun. I clean my face regularly with just a clean wet washcloth.
There's a special laundry soap and bar soap I can use but they are really expensive. I wash my clothes after wearing several times (unless they get dirty). And, although I RINSE my hands often during the day, when I get chicken poo or whatever on them, I just pour a little rubbing alcohol on them after rinsing (yes, it stings). And for things like mixing ground beef for meatballs or other raw meat (or delivering goat babies!), I use rubber gloves.