Covering up a Small Priority Flat Rate Box with a poly-mailer? It's too obvious! You're not slick, Amanda & Jimmy. : r/USPS
USPS | In An Age
Stop Overspending on Shipping: How to Find the Best Shipping Options - Online Shipping Blog | Endicia
Summary of Domestic Changes
Hi folks, is tool box allowed to be packaged with this usps padded envelope or not? I want to confirm if it's only used for sth like documents. Thanks in advance. :
Priority Mail International - Rates & Features | USPS