I've had friendly service recently in DC, NC, NJ and VA, and flat-rate Priority mail has utterly changed my interaction with shipping things, to the point that

I've had friendly service recently in DC, NC, NJ and VA, and flat-rate Priority mail has utterly changed my interaction with shipping things, to the point that I now no longer even have a good idea where the nearest FedEx or UPS is, and would actively prefer my packages come via USPS.