USPS now offers two 70-pound Priority Mail packs. One is about the size
of your head, and the other is more pizza-box shaped. Each costs $7.00
(!) to mail intra-CONUS. What a screamin' deal!

Flat-rate boxes. They're $7.70 postage and a free box. The boxes are way
too weak to hold much more than a few pounds of metal, so we wind up hot-
melt gluing corrugated reinforcements. I've shipped 40 lbs of metal this
way.