Here’s a look at the cheapest postal service options for packages and how fast they are expected to arrive: For USPS, flat rate boxes may be the best value since they can contain up to 70 pounds ...

Shipping with Flat Rate Boxes is a breeze. As long as it will fit in the box, it will ship at the same price whenever possible. The boxes are provided by USPS for free, and if your shipment is going ...

A ten-pound flat-rate box would arrive by Christmas Eve if shipped ... be sent by Dec. 18 to guarantee arrival before Christmas. USPS deadlines for shipping to U.S. service members and diplomats ...