Have you purchased your extra “Forever” stamps in order to save the two-cent increase on first-class mail, which will become effective on Monday, May 11? You have until that day to take advantage of the savings by purchasing the now-familiar liberty bell stamp which can be used “forever” for that one ounce of first-class mail.

Each year the U.S. Postal Service announces its postage increases, which are the result of the increased cost of doing business. As an example, for each one-cent increase in gasoline, the Postal Service’s costs increase by millions of dollars. U.S. postage is still one of the best values for customers.

As of May 11, postage rates for the most common mailed items will be:

44 cents for a one-ounce, first-class letter

17 cents for each additional ounce for a first-class letter

28 cents for a post card

88 cents for a “large” one-ounce, first-class envelope

$4.95 for a Priority Mail package up to one pound

$4.95 for a Flat Rate Priority envelope or small box

$10.35 for a Flat Rate Priority regular box

$13.95 for a Flat Rate Priority large box to APO/FPO address

$17.50 for Express Mail

$2.80 for Certified Mail

$2.30 for a Return Receipt

$2.35 for a Signature Confirmation

$4.50 for Restricted Delivery

Costs for other postal services depend on the value of the package, weight, and the destination country. And, no, there is no “grace” period. The postage rates are effective on May 11, said Fort Myers Postmaster Anne Murray.