How does the blue USPS box work? A while ago, I shipped a small

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Will the USPS require you to upgrade your PO Box if you repeatedly receive large packages that exceed the size of your current PO Box? - Quora

Does USPS pay shipping insurance claim money if I received a collectible figure from Japan and the box was totally ruined (water damaged) but the figure inside of the box was not

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Does it take longer to get a letter delivered when you leave it in mailbox with the red flag up versus taking it to mailbox at the post office? - Quora

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