 And just in time for your kids to send their graduation thank you cards out, the cost of a Forever stamp has gone up by a nickel to 73 cents. It's the second time the U.S. Postal Service has raised the cost this year. The Forever stamp first came out in 2007. This is CBS News. Think O'Reilly Auto Parts for all your car care needs. Get the parts and service you need fast from the professional parts people at O'Reilly Auto Parts.