If you're planning on mailing a letter Sunday with a 45-cent stamp, think again. The U.S. Postal Service is increasing its rate on letters weighing up to an ounce beginning Jan. 27.
The agency will start selling "Forever" stamps at 46 cents apiece. The stamps are inflation proof and will be good for mailing 1-ounce letters indefinitely, according to the USPS. Letters will still cost an extra 20 cents per additional ounce.
Postcards will also see a 1-cent raise, costing you 33 cents to send one.
For 1-ounce letters sent to international destinations, Global Forever stamps can be purchased for $1.10.
For more information on the postal rate changes, visit the U.S. Postal Service website.