These Stickers are convenient if you have plenty of USPS Priority Mail packages to ship. You can use your own packaging material by affixing the sticker.| store.usps.com
USPS shows you how to send a letter or postcard in the U.S., from choosing an envelope, writing the address, buying and applying stamps, and finding a drop-off location.| www.usps.com
Learn how to ship a package with USPS, from choosing the right mail service, packing your box, writing the address, calculating postage, and scheduling a pickup.| www.usps.com