For those that are sending priority mailed items, the post office now offers a flat rate box up to 70 pounds to anywhere in the United States for $7.70 this also includes packages being mailed to service people overseas.
This is really great for me as I have a son in Afghanistan and it was costing me a small fortune to ship packages. Just go to <http://supplies.usps.gov>, which will direct you to The Postal Store.
Click on Shipping Supplies. Once you have done that, click on Priority Mail,
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