Many popular patterns call for a tubular cast on. There are a number of ways of doing a tubular cast on but I think that the Italian tubular cast on method is the easiest of all as it sets up the 1 x 1 rib from the beginning.
by GoodKnitKisses
by LoomaHat.com
by Tuteate
by nadelspiel * Stricken & Häkeln
by Theresa Higby
by Scarlett Royal
by Wollefein Ekaterina Arndt