Holice

There was always a problem for me to determine the exact place to stop when approaching the end of side of the quilt to the corner. All instructions say to stop at the point that is the width of the seam allowance. Usually this is stop at 1/4" from the end since the seam allowance was 1/4". Whatever the width, one should stop that distance from the end. I have most of the gadgets that help determine this point but I either couldn't find them or lost them etc etc etc.
One day I accidently did the following:
When you get to about 3"-4" from the end, fold the binding back on itself lining its fold up with the edge of the quilt.
Then fold the binding strip to the left making a 45 degree fold on the top. This fold gives you a guide where to stop whether it is 1/4" or 3/8" or whatever. You can either make a mark along the edge of just hold it until the needle is approaching the fold. Then (and this is important), stop about 2 stitches before you get to the fold or line and backstitch a couple stitches. Cut threads and take out of the machine. This 2 stitch opening allows for the multiple folds when you turn the binding to the back for the mitre. It is the same principle as the scant 1/4" in piecing. Space should be left to accommodate the fold which takes up space. Then refold the binding strop to the right and down to make the mitre. Start the next seam by putting the needle just inside the edge to hold al the strips until you line up for the next seam.
Be sure the edges of this fold are even or the mitre will not fold in a good 45 degree angle.