The Cost of a Stamp Rises to 45 Cents

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SAN FRANCISCO, CA - JULY 26: A U.S. Postal Service customer enters the Bayview Station on July 26, 2011 in San Francisco, California. The U.S. Postal Service announced plans to cut up to 3,700 of its 32,000 post offices across the country as they seek ways to cut financial losses as mail volume dwindles. The Bayview Station is one of five in San Francisco that is being reviewed for closure. (Photo by Justin Sullivan/Getty Images) Photo: Justin Sullivan/2011 Getty Images

That's a one-cent increase, which incredibly will generate an additional $888 million in annual revenue for the U.S. Postal Service. The cost of an e-mail remains free, as long as you don't account for the emotional fatigue of having to repeatedly unsubscribe from relentless marketers that follow you forever after you make an ill-advised impulse buy.