Praxis is absolutely correct!
We do most of our shipping this way. (Between knives and my wife's lampwork, we're shipping out maybe 20 boxes a week.
USPS sends boxes for free, you print your 'shipping lable' which includes addresses and postage, tape it the box, pop it in the mailbox and that's it!
They will do special pick-ups also.
Pretty cool.
Good luck!!:thumbup: