The Clinch knot is definitely a knot you need to know. I know a lot of knots and still find myself tying a good, old fashioned Clinch Knot in many situations. The real key to making sure you tie it correctly is to inspect it and make sure that the barrels are stacked, not hopping over one another.
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Tie Anything Down With 3 Simple Knots. Bowline, Trucker's Hitch, Half Hitch
The three knots are the Bowline (click here for video) , Trucker's Hitch and Half Hitch. With these knots you can secure anything for transport in a way that creates a mechanical advantage and truly secures your boat, cooler, bed, couch or whatever you are moving...