zlacker

A solution would be to dramatically reduce the number you try to keep in mind. Bowline, two half hitches and trucker's hitch might be enough, if all you're doing is tying stuff into a trailer or a car.

>>jeffra+(OP)
Good list. As someone who sails, I'd add either a Magnus hitch or a rolling hitch to that list (preference, really -- both will get you there, but a Magnus is easier depending on where the load is how breakable you want the knot to be) and call it a day.