Pirate Ship offers super low USPS rates—up to 87% off shipping—which is great...

https://shipping-discounts.s3.amazonaws.com/goshippo/video/pirateship-shipping-reviews.html

Pirate Ship offers super low USPS rates—up to 87% off shipping—which is great for sellers focused on USPS. Support is email-only, so it’s perfect if you don’t mind waiting for replies