Skill level: Intermediate
These loops are made on wrong-side rows and are surprisingly easy with a little practice.
Cast on any number of sts.
1st row (RS) K.
2nd row * Take yarn under then over 2nd finger of left hand to form a loop, k next st but do not slip it from needle, transfer st just made to the left-hand needle and k 2 tog tbl (the new st and the original st); repeat from * along the row.
3rd row * K 1 tbl; repeat from * to end.