I always think the extra uses you find for gizmos are better than the intended purpose.

I've just made a shopping bag out of an old curtain entirely using my "quarter inch foot".
I used it with the needle in the furthest right position to do the first run on the French seams and then in the centre position to do the second run. Perfect.
Top stitched the handles with the needle in the furthest right position. Perfect.
Finally, I pressed a double hem across the top and trapped the handles under it, top stitched round with the needle in the furthest right position so they were connected at the same time, then flipped them upwards to top stitch again with the needle in the centre position. Almost perfect. That didn't quite go through all the layers of the hem so I stitched round once more to create a third parallel top stitch with the normal foot. I wouldn't have needed to do that if I'd allowed a bit more fabric in the folded under part of the hem. Next time......

Any more lateral thoughts?