To ease the blow of postal rates going up two cents, the USPS is introducing a new stamp that will always pay the postal rate, no matter when you use it.
Cost: 41 cents
Goes on sale: April 12, 2007
New rate effective: May 14, 2007
Can be used for international mail?: Yes, but only at a value of 41 cents per stamp. Additional postage required to meet the necessary international postal rate.
What does it look like: See picture above.
— BEN POPKEN
A Look At The Forever Stamp [CBS News]