Goal and options: To help prevent acid reflex after eating a large meal,
output answer: lay on your left side when relaxing.

Goal and options: To find the stud in the drywall.
output answer: Calibrate an edge finder by finding the density of the wall on the section without a stud. The move it along the wall from one side until it finds the edge of a stud. Move in from the other side to find the opposite edge.

Goal and options: To attach elastic to a knitted beard so that it fits on your face
output answer:
Sew the elastic to the beard with thread and needle.