I just placed an order a day or so ago. I didnt know they shipped USPS so I sent my street addy instead of my P.O. Box. Does anyone know if USPS delivers to rural areas if you dont have a mailbox? It's not a problem and Ive already emailed <the seller> asking about it. I'd just like a heads up before Monday when they're suppose to be shipping so I can give them my PO Box if need be. Thanks!