Well if it really counts, I shower in the morning, every morning. Occasionally I'll take a bath at night, and when I do, I drop just a few grams of Uranium ore into the tub. I find it's tingly-ness to be quite...refreshing.
If you want some,:
Anywho~ I've actually noticed that sometimes, I'll turn the water on max. And for where I live, that means "Eh, I don't -NEED- skin.".
Basically, you feel it for a second or two, then you feel cold, then nothing at all. Then again, could be the Uranium ore. S'not really important.