I also have issues with tossing used rope ... so many uses. I have a a 10' piece secured waist high along the garage wall. It keeps the shovels, rakes, brooms, and the like from falling over. Just something quick an easy before we move to a permanent home.A hammock out of climbing line is likely to be pretty dang heavy and bulky
How short does a piece of rope have to be to become garbage?
I never put a piece longer than about 15' in the trash. Any longer and someone could use it for a tow rope or some other dangerous purpose.
When I wired the trailer lights on my Chevy Astro van I used a piece of climbing rope with the core pulled as a covering for the wires. Super durable and flexible for coiling into the cubby hole for storage.