[QUOTE=Deb watkins;6747815]First of all, align the salvages and the folded edge so there aren't any wonky edges at the fold, then the 5 x 18 ruler works best for me when I cut.[/QUOTE
For me this is the most important step. If fabric is not align it won't cut straight. Before I put fabric on cutting mat I hold it up and play with it,move back & forth, until it lines up.