Pirate Ship offers USPS shipping discounts up to 87% off, making it a great...

https://www.social-bookmarkings.win/pirate-ship-makes-shipping-simple-with-usps-rates-up-to-87-off-and-easy-label

Pirate Ship offers USPS shipping discounts up to 87% off, making it a great choice if you mainly ship with USPS. However, their support is email-only, which can slow things down