Former marketing professional Jason Sadler hasn’t had to wash his clothes in more than a year, but that hasn’t hurt his job prospects. In 2008, the 26-year-old from Florida started his own human billboard service, www.iwearyourshirt.com. Each day, Sadler wears a different company’s T-shirt around town and takes photos of himself. He then blogs about the pictures, creates a YouTube video and updates his Twitter and Facebook pages to promote the day’s company. The cost? Sadler charges "face value" for the given day—so the price for Jan. 1 is $1; Dec. 31 is $365. But with true expansionist form, Sadler added a twist to the 2010 calendar: He hired a second person to don the shirt on the West Coast and doubled a day’s fee. This year, combined with various monthly sponsorships Sadler earned around $83,000. And that doesn’t even include the money he saves on laundry.