Use a light-colored yarn in worsted or heavy worsted (animal fibers work best) and size 8, 9, or 10.5 needles, CO 30 sts. Work the following 4 rows to produce a 4-row swatch that is part stockinette stitch and part ribbing.
Row 1 (RS): k18, place marker, *p2, k2* until end.
Row 2 (WS): *p2, k2*3 times, p until end.
Rows 3: Repeat Row 1.
Row 4: Repeat Row 2.