I was wondering if it was ok I turn a FLAT RATE Priority mailing box INSIDE OUT & use it to mail something. I have gotten packages like this a number of times though from sellers on Ebay, paperback trading sites & other swap sites. The thing that worries me though is written on the side of boxes and mailers is a note saying: THIS PACKAGING IS THE PROPERTY OF THE US POSTAL SERVICE AND IS PROVIDED SOLELY FOR THE USE IN SENDING PRIORITY MAIL. MISUSE MAY BE A VIOLATION OF FEDERAL LAW. So I am wondering if I turn it inside out and use it to mail Priority mail then that will be ok. The main reason I'm asking is I have a bunch of baby & toddler Halloween outfits that I want to sell on Ebay. I'm trying to figure out a way to package & mail them so the shipping will be low. My other thought was to just carefully wrap the outfits in a plastic bag (double bag) & then use plain Brown Wrapping paper to wrap it. Would that be tacky though? It would be lighter than a box and help keep shipping low. What do you think? I usually ship First Class or Media so I'm always at a loss when shipping some other way. lol Actually I have requested a bunch a boxes online. Even though I NEVER request the FLAT RATE box, just the normal box I keep getting sent the FLAT RATE which I can't use. Due to health issues I mail from home so getting to the post office is not that easy for me. It is easier to request the free boxes online, which as you see from above didn't work out well.