You know, if I'm doing it on my long arm or on my regular machine, I leave a long tail and stick a safety pin in the area so I don't forget. Then I go back, tie a regular knot (like tying your shoes) up against the quilt; then I put those threads into a sewing needle and bury them into the quilt 3-6" and then trim the left over. It reduces the thread knot you get from backstitching in place on a normal machine. I don't know if that would work for anyone else, but it works for me
DustysMom, if you need an angel for the last swap, I can help out. I've got time and a plastic card that pays for fabric.