GrammaNan - ruler folding is very easy -- fold your fabric with the selvedges together, then fold in half again. Place a 6 x 12 inch ruler along one of the raw edges, then keep folding until you reach the end of your fabric. I believe there is a tutorial on this process. I know a lot of people use the comic boards to fold their fabric on but I hardly have enough room for my fabric let alone adding boards to it.