In my own research to find the best way to ship a glass 1/4 window, I found this site that may just benefit others here that ship auto parts.
So I thought I would share. http://images.fedex.com/us/packaging/guides/Automotive_fxcom.pdf
I usually don't care for FedEx but that is useful info. Thanks for sharing.!!.
I had a quarter glass sent to me threw the post office & it was bubble wrapped then put in the box , received it in one piece ...
Bubble wrap usually comes to mind first. I used to work in an upscale salvage yard that had it's own shipping dept. They shipped glass by wrapping it in a plastic sheath and using expanding foam around it in a box. I did a similar packaging of this glass I sent by using a plastic garbage liner and expanding insulation foam.