You probably heard that the Levi's CEO says never to wash your jeans. (http://www.slate.com/blogs/business_insider/2014/05/30/levi_s_ceo_chip_bergh_tells_fortune_people_shouldn_t_wash_their_jeans_university.html)
I personally think that advice probably works fine --- if you're a CEO and spend all day every day doing white-collar CEO-type stuff. But real-world jeans? Hmmmm.
On the other hand, maybe he's on to something:
"Archaeologists working at an ancient graveyard in western China have unearthed what they say is the oldest pair of pants ever found.... The wool pants were found with the remains of two men, each about 40, who lived about 3,300 years ago..."