I was trying to cut tenon shoulders on the end of an odd shaped workpiece, and I was having a hard time keeping my handsaw on target. Then it occurred to me that I could use a wooden handscrew as a saw guide, clamping the jaws of the tool adjacent to my cutline opposite the waste side. To prevent scarring the jaws with the saw teeth, I used a flush-cutting saw, which worked great. As a bonus, the jaws also served as a chisel guide for cleaning up any sections afterward where necessary.
