Cleanliness: Tolerate no uncleanliness in body, clothes, or habitation.
Let's think this through, shall we? Mr. Franklin lived from 1706 to 1790. What do you think the odds are that my personal hygiene standards surpass Mr. Franklin's?
Well, I Googled "Benjamin Franklin hygiene standards" just to find out. And yes, a plethora of sites popped up. The Internet, it's pretty freaky if you think about it.
Anyhoo - I'm quoting from http://www.codecheck.com/: "An unusual aspect of Franklin's personality, at least by the standards of the 18th century, was his concern for personal hygiene. From his youth he was an avid swimmer, and in his adult life he bathed as often as once a week--a practice considered scandalous at the time. Franklin not only brought the first bathtub to America, but he improved its design and spent much of his time reading and writing while soaking. His concern for sanitation went beyond his own personal needs, and he was instrumental in creating America's first public sewer system in Philadelphia."