Now that your yarn strands have about as much twist as they can take, you'll notice you have an end of the cord that's a bit of a mess with all your yarn ends and the loop that was on the end of your chair or doorknob.
You may even need to add a bit more twist here to make the end consistent with the way the rest of the cord looks. Do that, then the way I usually finish a twisted cord is to thread the yarn ends through the loop and tie it all in a neat little knot.
Trim all but a tiny bit of the loose ends, leaving enough that the knot won't come undone.
Use the cord however you want: as a bag handle, a tie or any other way that suits your fancy.
