I bought a bag of ss 1/4" eye nuts on Amazon to replace some of the regular 1/4" nuts in the cabin. They make great tie points for sail bags, gear hammocks, etc.
I also epoxied some short 3/4" boards to the underside of the side decks to serve as a base for more ss screw eyes for even more attachment points. Small carabiners on sail bags, sleeping bags, backpacks, etc. allow them to be hooked on anywhere to keep them from sliding around in the cabin.