RAChhap - thanks I love your idea. I'll have to try it cause I have a hard time sewing straight lines. After all these years, that's still my biggest challenge!! A quilt teacher taught me to use the lines on an index card because they're 1/4". She said sewing on the line was a 1/4" and sewing just to the right of the line was a scant 1/4". I tried it and measured and sure enough she was right. But my problem was sewing a straight line so the whole seam was consistent. Stick of gum here I come!