U.S. Postal Service proposes to hike first-class stamps to 78 cents in July / Eye-watering cost of stamps is relegating Christmas cards to a thing of the past / Jeopardy! host Alex Trebek gets first-class tribute with U.S. Postal Service stamp / Alex Trebek honored with postage stamp / Why, In A Digital World, Do We Still Use Postage Stamps? / Buy Your Stamps Now: What to Know About USPS' Price Hike / You're Gonna Want to Buy Your Stamps ASAP: USPS to Hike Prices This Summer / You Should Buy Stamps Now Before USPS Increases Its Prices. What to Know / How do U.S. stamp prices compare with postage costs in other countries? / US Postal Service release stamps featuring NASA webb images