lace stockinette bind off

Lace bind off, knitted version (as demonstrated in the video above): K1, *k1; insert the tip of the left needle into the fronts of these two stitches from left to right (as if to do an SSK decrease), and knit them together from that position; repeat from * until all sts have been worked. Cut yarn and pull up and out through final st to secure.
You can see that the edge is rolling forward a bit . This is because it’s looser than the fabric below. I wouldn’t use this for a sweater neckline, or a standard scarf, however. It's best used when there’s an edge that’s worn stretched, like the top of a toe-up sock, or the bottom edge of a top-down sweater; or if you’re going to stretch the piece, like a lace shawl, a lot with blocking.
See the full column on stretchy bind offs on Knitty: knitty.com/ISS...