1. Make your double fold bias binding at the time you finish sewing the quilt top together while you still have your sewing machine and fabric out. Wrap the binding around an empty toilet paper tube or 8x10-inch cardboard piece (so it doesn't crease), This insures that you won't accidentally use the binding fabric for something else.
2. Sew your binding on before you trim your edges. Then trim your edges with the binding attached. I have trimmed, then sewn and missed the backing sometimes. This assures you will not miss the backing since it is larger than the quilt top.