Twice Sheared Sheep Do The Thing Stitch Marker

Did you forget to DO THE THING 2 rows back... again? You know what the thing was. Maybe it was in increase, or a cable cross, or that special loopty thingy the designer invented, but you blew right past it and now you need to rip back. Never forget the special thing again!
Place it on your needles as a stitch marker.
Clip it directly to your work where you need to remember.
Or clip it right on your row counter marking the row that you need to DO THE THING.