Jacklines and tethers are used anytime you leave the companionway.
I like U bolts in the cockpit corners.
I do not have individual tethers; rather they are attached to the jacklines and U bolts. As you move around you attach the new one BEFORE releasing the old one.
ISPA Yachtmaster Offshore Instructor Evaluator
Sail Canada Advanced Cruising Instructor
IYT Yachtmaster Coastal Instructor
ASA 201, 203, 204, 205, 206, 214
As I sail, I praise God, and care not. (Luke Foxe)