On Wednesday, the International Postal Union reported that shipping rates on some international items would drop by up to 35%.
On Tuesday, Amazon said it would slash shipping rates by 35% to 60% for most of the US and Canada.
The USPS has announced a number of changes to its shipping practices.
In the past, they have reduced the number of times a package can be processed.
This year, the USPS announced that it will increase the number and speed of expedited shipping, and that it would start offering expedited service to certain orders.
These changes come after the USPS began cutting the number it delivers to businesses in 2014 and the agency has said that it wants to speed up the delivery of its mail by using a new, more efficient system of tracking and tracking records.