Free Drop Stitch Garter Knitting Pattern.
yo = yarn over
Cast on any number of stitches you choose.
Row 1 (RS): k
Row 2 (WS): k
Row 3: k1, *yo twice, k1; rep from * to end
Row 4: Knit across dropping the yo loops as you go.
Repeat 4 rows above until you reach desired length.