Forever Stamp

A Forever Stamp is a type of postage stamp issued by the United States Postal Service that retains its value regardless of future postal rate changes. Once purchased, you can use it to mail a one-ounce letter anytime in the future without needing to buy new stamps, even if postal rates increase. This provides convenience and cost security for senders, as the stamp's value is "locked in" at the time of purchase. Forever Stamps are especially popular for their flexibility, often used for standard letters and available at most post offices.