The cabled edge bind off is a technique I learned for my next pattern, and I'm really excited about it. Without binding off your work, you make an edging and attach it to your work as you go, in lieu of binding off. It can create a really beautiful finished edge, and it has the added benefit of not creating a hard bind off edge.
The instructions below are for an edging with a basic, 4-stitch cable over a 4-row repeat, but you can use any edging (or strip of cable, lace, or pattern stitch) that is worked short-ways. Each edging row corresponds to one of the stitches to be bound off, and connects to the stitch similarly to how you connect row ends to live stitches in entrelac.
There is a little math that's useful to work through before you start, though, especially if you are adding it to a piece worked in the round. You want the number of rows in the repeat for the edging to go evenly into the number of stitches you are binding off. Since the instructions below are for a 4-row repeat, it will look best used over a multiple of four stitches.
At the beginning of your row or round, and using knitted cast on, CO 4. This edging is worked in rows and connects to your work similarly to how squares are connected in entrelac.
Row 1 (RS): sl 1, k2, ssk 4th st and next st from body on needle. Turn.
Row 2 (WS): sl next st from body to LH needle, p2tog tbl, p3. Turn.
Row 3: sl 2 to cable needle and hold in back, k2, k1 from cable needle, ssk st from cable needle and next st from body.
Row 4: Rep row 2.
Rep these 4 rows until all the stitches from the body are used up.
If the original work was flat, bind off remains 4 stitches. If it was in the round, Kitchener stitch remaining 4 stitches to the cast on from the beginning of the bind off edging.