I did use the comic book boards as I found that I didn't seem to keep a consistent size without them and I needed way too many to cut down bolt holders even if they were free. One thing that I did that I LOVE is I punched a hole near the top and corner and then used merchandise tags (office supply store). I measured my fabric and noted (in pencil) the yardage on the tag before wrapping. That way when I find a fabric that works I know right off if there is enough and when I use some of it I just erase the original and update the yardage.
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