Cast on any odd number of stitches. Row 1: work alternating 1 knit stitch followed by 1 purl stitch until the end of the row. Row 2: work alternating 1 purl stitch followed by 1 knit stitch until the end of the row. Row 3: work alternating 1 purl stitch followed by 1 knit stitch until the end of the row.