I figure I'm out on the water alone with no one to help me. I keep a complete socket set with short and long extensions and rachet, 3/8 through 7/8 open end wrenches, flat and philips screwdrivers, 2 vise grips, needle nose and regular pliers, electrical tape, duct tape, electrical wire, extra spark plugs & plug wrench, hammer, assorted hose clamps, tie wire, and extra fuses. There may be more in my boat tool box that I can't think of at the moment.