U.S. Postal Service Sends a Love Letter to Green Philatelists
April 15th, 2011 | by Tina Casey
The U.S. Postal Service has just issued a new set of social awareness stamps that depict energy conservation tips and other environmental actions. For sustainability purists that's a bit of a head scratcher - after all, stamps go along with the whole junk mail/carbon emissions complex - but on second thought, the whole
