Junk mail

Ever wonder why you are bombarded with so much junk snail mail? According to Business Week, the US Postal Service "relies on first-class mail to fund most of its operations, but first-class mail volume is steadily declining—in 2005 it fell below junk mail for the first time. This was a significant milestone. The USPS needs three pieces of junk mail to replace the profit of a vanished stamp-bearing letter." Now you know.