Pirate Ship offers USPS labels up to 87% off retail rates, making it a great...

https://wiki-cable.win/index.php/Is_Pirate_Ship_Easy_to_Learn_for_a_First-Time_Seller%3F

Pirate Ship offers USPS labels up to 87% off retail rates, making it a great choice if you mainly ship with USPS. Their live chat support is solid, but if you prefer email-only help or need DHL Express options, Shippo might be a better fit