I was at the bookstore this weekend and was reading a book about "beauty care", that was supposed to contain recipes for homemade beauty products.
One of the interesting things that this book said was that *thorough* washing is required, and that you should have a bath at least once per day and spend at least 20 minutes just using soap to scrub yourself from head to toe to eliminate all the dirt and oil buildup on your skin. Then, you start with the various exfoliators, masks, treatments, etc. that you can make with the recipes in the book.
Personally, I'm all for bathing on a daily basis, but the 20 minutes of scrubbing, as well as the "at least once per day", which leaves you open to bathing much more than that, seems to go against what I've read and heard elsewhere. I think 20 minutes of vigorous scrubbing with soap would irritate my skin as well as dry the heck out of it. I mean, how much dirt do you have on you?