Tugmans Hitch
Great idea Mr Higgs.I grew up with many,many knots, father was a seaman. Then reading "The Complete Riggers apprentice" by Brian Toss I ran into several I didn't know including 'The Tugmans Hitch' which I ended up using on a boat I brought down from CAnada, she had winches but no cleats.This knot can hold a load and be loosed with the load on.Other handy knots: prussik (Austrian climbing knot similiar to a rolling hitch but more adaptable for unloading a line, climbing a mast, and other handy tasks), Butterfly knot which is quick to tie for a bight, but only cuts the strength of the line by 30%.A bowline is easy to tie, and using the 'key' properly can be untied when wet or icy, it is not a good knot for movement and can untie itself; climbers never use a bowline, but a figure eight or butterfly to tie into the rope.I have had problems wtih snap-shackles (breaking) and I agree, a good knot is better, but better still is a locking carribiner from a climbing shop like REI.