I really do hate how they put soft or fragile stuff on the bottom, and heavy stuff on top of the skids.
I've received shipments where alarm clocks, glass objects, and half-full boxes of clothing were on the bottom, and they were topped with things like furniture, power tools, TVs, and whatnot. The tiny boxes were supporting the big stuff, the soft stuff would be squished, and the fragile stuff would be broken.
The health food store I used to work for would stack totes with cereal and rice boxes on the bottom, and heavy totes with jars of spaghetti sauce and bottled juice on top. Heavy totes that you can't see through and have no idea what is in them + over your head = painful back spasm.