Japanese folded patchwork is very portable. Cut out a six and a half inch circle, tack the quarter inch seam allowance. Cut out a 4inch. square of fabric and wadding. Place the wadding then fabric in the centre of the circle and then carefully fold and slip stitch edges of circle over square, taking care to get sharp points in the corners. If you go into the pictures section on here and look at the section for things other than quilts you will see a brown bag I made using this method. It is good for cot quilts as well.