I used to have my stash on old bolts from the fabric store but I read that the acid in the cardboard will turn your fabric white at the edges. So to say the least I panicked . Now I'm using Polor notions plastic boards like alaskasunshine uses. She made her own but I couldn't find the plastic boards.
I found so far one bright pink that at each thin side of the bolt now has a white line. now I have alot of quarter sizes between the stripes.
So don't use your cardboard bolts very long or you will have stripes. kjym kathy