OH DUH! You mean the flat bottom coffee filters!
I kept thinking "How does she get that cone to stand up when she is putting the EP on her project?"
Now that the lightbulb has come on over my head - that's a good idea, Karen! I have EPs that I don't keep in a container, too. I only do containers for my five basic ones that I use all the time - white, black, clear, silver, gold.