Jeans Button Saver

You know when the button of your favourite pair for jeans parts company with the rest of the garment. Time to bin the jeans ,right? I mean you can't sew the button back into place. You could salvage a button with some material from some other jeans, but that means having another pair to sacrifice. Now you don't have to throw your jeans away. Just anchor the button in place with this 'C' clip.