Greyhound Package Express rates can be good for odd packages (large/heavy/irregular). They don't take it right to your door but that can be worth it depending on the savings.

I used to hear of it being used a lot to ship R/C airplanes cross country. You could disassemble them into a pair of wing assemblies and a fuselage and box them up. UPS/Fedex rates would suck because of the dimensional weight but Greyhound would usually beat them.