It’s Web 2.0 gimmicky as all get-out, but who am I to argue with $85K for wearing a year’s worth of corporate swag?

Jason Sadler, 26, a former marketing professional from Florida, founded his own company, www.iwearyourshirt.com, in 2008 with the idea to wear a T-shirt supplied by any company and then use social media tools to promote the firm.

For his human billboard service, Sadler charges the “face value” of the day so January 1 costs $1, while December 31 costs $365.

Sadler said this may not sound like a lot but it adds up to $66,795 a year if he sells out every day, which he did this year. He also sells monthly sponsorships for $1,500, adding another $18,000 to his income.

The numbers certainly add up. And I commend Sadler for creatively linking the dollar amount with the day-of-year tally. I don’t know how much that’ll be undercut by his 2010 plan: Doubling the sponsorship fee for each day by adding a synchronized second t-shirt wearer in Los Angeles (Sadler’s in Jacksonville). Since the main exposure comes from posting photos online, versus the eyeballs that see the t-shirt on the street, I don’t see much advantage to having more than one person wear a shirt.

It’s working so far, though. And whenever the gimmick crashes and burns, at least these two guys will have a year’s supply of t-shirts to keep their wardrobes full.