Treat any slippery areas with either non-skid paint or stick on strips. Pay particular attention to the tops of hatches and sloping coachroof sides which become walkways when the boat is heeled. Use safety harnesses in rough weather and at night. Make sure they are adjusted to a tight fit or you can fall out of them. Fit suitably placed harness attachment points close to the companionway so that you can clip on before coming on deck and on both sides of the cockpit. Rig jackstays on both sides of the boat so that you can walk the full length of the deck without having to unclip.