What are the best tieing knots to use for securing things on top of the car?

Personally I am useless when it comes to tieing knots. My knots just come apart and I lose things. I really should be good at it because I took sailing lessons years ago and that was part of the course but I can't remember a thing about the knots.

I did happen to find a site that claims to show you how to tie "the 10 most useful knots". It does have pictures and comments so I think with some determination a person could follow it. Here's the link

http://lifehacker.com/software/knots/the-ten-most-useful-knots-and-how-to-tie-them-258043.php

And Good Luck ~!

I just went to that website. It has some great knots. Thanks for the link!

Very useful link, thanks. I didnt know you could tie so many knots