What kind of foam do you like?

Now that was odd. One of the lunchtime variety shows had a short piece about research going on here in Japan to provide improved body soap -- you know, that stuff you use to wash your body with in the shower or bath?
( rub-a-dub-dub )

But, I have to wonder, do I really want lots of suds, stiff enough to hold up coins? I'm not quite sure that I ever thought of that as a desirable quality in my shower...