This is how to long tail cast on knitting left handed. it's great for socks to you don't end up with a first purl row.
by Meladora's Creations for Crochet
by nadelspiel * Stricken & Häkeln
by cottonandcloud
by Wollefein Ekaterina Arndt
by Alison Russell's Craft Channel
by Happy Knitter
by LoomaHat.com