Polar Notions plastic storage sheets:
www.polarnotions.com/Buy_Now_.html
A thread in the For Sale area for easy core storage:
http://www.quiltingboard.com/items-s...g-t176075.html
Looks like for similar size, the Polar Notions brand is only $2.50 more, but then add another $12.50 shipping... :\
I hadn't seen this thread before, and just yesterday ordered the easy core boards from MILate. Of course, I now need to buy a bookcase or two...