Wind the cast on’s leftover yarn tail into a handy bobbin. The bobbin keeps the tail out of the way as you knit and prevents you from accidentally knitting with it. The bobbin preserves the tail and is perfect for seaming at the conclusion of the project. This yarn management tip is one of my most requested tricks at my workshops.
Tie the tail from your cast on stitches in a bow. Should you grab the tail instead of the working yarn, you will be stopped quickly by the bow and only need to unknit a few stitches. Every knitter, no matter their skill level, knits with the tail now and then. UGH!