USPS® Shipping Services
Learn about the shipping services and rates that USPS® offers.
Why does my USPS label have an old tracking number?
Pirate Ship now offers Priority Mail rates BELOW Commercial Pricing!
USPS Nonstandard Fees
USPS July 2023 Changes: New Rates & First Class Package and Parcel Select merge into Ground Advantage
USPS Rate Change August 2021
What is Dimensional (DIM) Weight pricing?
Maximum size and weight limits for USPS® services
USPS: Prohibited Items
Cheapest way to ship posters
What is Weight-based Priority Mail?
How to intercept or return a package
Do USPS® and UPS® services come with tracking numbers?
List of countries with USPS® E-DELCON International Tracking
What is the USPS APV Automated Package Verification System?
Can I use Priority Mail Cubic with a softpack or padded envelope?
Why you shouldn't use Medium or Large Flat Rate Boxes
Why you shouldn't use Priority Mail Regional Rate
Free USPS Mailing Boxes for Priority Mail Cubic
Does Pirate Ship offer stamps or postage for mailing letters or flats?
The cheapest ways to ship with USPS®
How do you use the USPS Media Mail® shipping service?
Do I need to use a Priority Mail® box if I buy a Priority Mail® label?
What is Priority Mail Cubic?