Jason Sadler came up with an idea so simple that we should all kick ourselves for not thinking of it sooner. Sadler has rented his torso out every day in 2009, letting companies pay him to wear a T-shirts with their logos.

The fee is based on the calendar date, so whoever sponsored Sadler on August 1st was only charged $1, while the sponsor on the 31st will be charged $31.

The fee is based on the day of the year, so the January 1st sponsor is only charged $1, while December 31st's sponsor will owe $365.

Sadler posts pictures and videos of him wearing the shirts on his site, iwearyourshirt.com, and others like ustream.tv and twitter. 

The idea gained such popularity that he has already sold out the rest of the year and almost half of 2010 (even though he's charging twice as much he'll have twice the chargeable dates because he added a second shirt wearer). 

Sadler told Marketing Daily that the idea came to him while thinking about how many companies give away shirts for free. With that mentality, he thought it wouldn't be too much of a stretch to get these same companies to pay him to wear the shirts if he kept the price low enough. 

And how. Sadler has earned $70,000 this year... all from wearing T-shirts.

Maybe someday I'll have a good idea...

-Cody