Until I saw this aluminum soap case at an antique store, I hadn’t really given the question much thought. We’ve been a liquid soap household for at least 10 years. So long, in fact, that my kids would probably be as puzzled by a bar of soap as they would by a VCR. Why did we make the switch? To be honest, I can’t remember, but we’ve stuck with liquid soap because it seems to solve the soap scum problem. What’s your soap preference? â€” Sarah L.