Forged transit passes. The real deal will cost you around $100 a month, but you can pick them up for half that at Portland's Pioneer Square and other transit hotspots.
In fact, on Wednesday night, transit police arrested 39-year-old Efren Escarsega, Jr., who is suspected of possibly forging more than a thousand TriMet passes with stolen ticket stock.
At $50 to $60 a pop, that's a nice chunk of change. For frequent riders, it's a helluva deal. Although if you work for the government around here (as many in the downtown area do), you'll generally get a "free" annual pass, courtesy of taxpayers.