The United States Postal Service announced postage increases effective January 26, 2014. First class letters one ounce or less increase to 49 cents. If you have forever stamps, they are good forever, no matter what you paid for them; you do not need to add additional postage. Postcard stamps increase to 34 cents (postcards up to 4.25″ x 6″). International letters increase to $1.15. Remember, you can buy stamps and mail your personal mail and packages in the Outgoing Mailroom/Shipping & Receiving on the lower level of Christensen Center.