Sewn Bind-Off

This bind-off was developed by Elizabeth Zimmermann as a very stretchy alternative to the traditional bind-off. Its appearance is very similar to a standard long-tail cast-on edge, so it’s useful if you want your edges to match. It’s also great for anything that needs to be able to stretch a lot, like snug sweater neck edges. 

Placing a Lifeline

A lifeline is useful for several purposes. It can be used to hold onto stitches if you're worried you may have to frog - many people use lifelines regularly when working large lace projects. They allow you to rip back to held stitches instead of being worried you may lose some stitches.