As a bonus, USPS will ship a supply of boxes to your home...for free! You can get multiples of one size or a variety pack of the four flat rate sizes. Priority mail boxes can be sent right from you house, too, thus saving you a trip to the post office. To print shipping at home, you just print it on regular computer paper and tape it to the box. It is so easy! In addition, when you print at home, you get free tracking.

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