The trucker’s hitch is a compound knot that functions as a kind of pulley affording a mechanical advantage effectively tripling the amount of pull on the working end. Use the trucker’s hitch when tightening up tarp lines, securing loads or making bundles.
"The constrictor knot is a way of making a secure, temporary or semi-permanent binding (it’s a good temporary whipping for a rope, closing a bag, or holding a punch of poles together.)" here's my video on this knot with a no-tangle paracord skein
80 Uses for Paracord What Did I Miss? Last week a friend of mine saw the paracord lanyard that I keep on my keychain and asked what it was for. I explained a little history of paracord and told him and many of the different ways that it could be used.