Earlier quoted context omitted.
I can relate to the pain involved of not having a box. Unless I just got something from Amazon, I won't have a usable box. And while the post office may have free boxes, the trip to the post office in and of itself is pain enough to cause breakage [1]. [1] I think I'd rather have my fingers run over by the car than make a trip to the US Post Office. Right up there with the DMV.
I agree. When I was selling online more frequently, I had a collection of Priority Mail boxes to use, and this still didn't cover all of the sizes I needed. As dumb as it sounds, shipping me the properly sized box would be amazing. I'm curious if they provide packing material too - that was the other big issue for me. I typically used newspaper or peanuts from a box I had sitting around, but I still ran into trouble…
Check out http://shyp.co
We fit the contents into the perfect size box so even though we charge a little more than going directly to USPS, we can more than make up for it in our efficiencies. Plus real-time comparison to UPS, Fedex and Ontrac is in the works.