Folded and on the shelf is what I do, also. I was having trouble with my stacks leaning (have one very deep shelf) so I bought, also at the $ store or at a discount store, aluminum, disposable cookie sheets....stand those vertically between your stacks for stability!!!! Works wonderfully....and who knows? Someday i might make cookies! (nah--not until I can't hold a needle or push the foot pedal!
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