SAN FRANCISCO, Jan. 15, 2014 /PRNewswire/ — Today the U.S. Postal Service began celebrating the 2014 Lunar New Year by issuing the Celebrating Lunar New Year: Year of the Horse Forever stamp.   Available today in sheets of 12 stamps, customers may purchase the stamps at usps.com/stamps, at 800-STAMP24 (800-782-6724) or at Post Offices nationwide and […]