The "Tite-Tie" is a little metal widget that lets you create a simulacrum of the famous "Trucker's Knot" tie-down without actually knowing how to tie a knot. It was originally only available in Australia, but is now supposedly available in America at Home Depot.
Chris Howard, the Tite-Tie's inventor, wrote this description on Toolmonger earlier this year:
The Tite-Tie is made from heat treated steel (not plastic) and is rated for 1985lbs. The reason why I invented this product is because there are 9 different way to tie a trucker’s knot and more and more people are becoming confused or not bothering to learn but still try to secure cargo with ropes. The Tite-Tie gives a super strong tie down with no knot tying, and the one size fits small to large ropes, you can even use webbing straps.
Toolmonger wasn't able to confirm if they're actually available yet in Home Depot, so if you spot one bop over there and let the 'mongers know. It should cost around $10 or so.
Tite-Tie Now Available In The US – Or So We Hear [Toolmonger]