1 Whether you are issued a five or ten-year license depends on the mode of renewal.  It is advisable to renew your driver's license before the birthday on which it will expire. You can renew your driver's license within nine months of expiration date.
Price of a Stamp. The current price of a first class stamp is 49 cents. A domestic first class letter (1 oz.) is 49 cents. The price of each additional ounce is 21 cents. It will cost you 34 cents to send a domestic postcard.
Short answer, currently 47 cents (US). Long answer, Forever stamps will always be worth whatever the current 1st class standard 1 ounce letter rate is. That rate may increase to 49 cents on Jan. 22nd. In which case, any Forever stamp would be worth 49 cents.