The U.S. Postal Service is seeking a rate increase this summer that includes hiking the cost of a first-class stamp from 73 cents to 78 cents.

The United States Postal Service (USPS) is looking to raise prices of first class main stamps by five cents, increasing it ...

Royal Mail shares if you can still use old first and second-class stamps in the UK - what you can do with them if they don't have a barcode.