You need to get a hold of a sales rep at UPS. I don't know how, but I had one contact me recently. He was very persistent. I blew him off at first and basically said "dude, stop wasting our time - I don't ship out much and you are not going to be able to do anything about our rates". I was very wrong. We shipped a large order of international stuff that cost us $10k. It would be about $2500 if I shipped it now. Of course, domestic ground shipping won't see that dramatic of a difference, but it is still pretty significant. It is good enough that I use our own UPS account for a handful of vendors instead of their account (of course, I know they are marking their shipments up). I'm not getting Amazon rates by any means, but it is much more palatable.