A.J. Jacobs, the guy who wrote The Know It All after spending a year reading through the Encyclopedia Britannica, has spent another year doing something even more challenging: trying to follow every rule in the Bible!
The result is his new book, The Year of Living Biblically. I can't imagine how difficult this would be but after reading this article from Newsweek, I have a better idea. Check it out, if for no other reason, than to see how his beard grew over the course of the year!