Best thing to twist hair with when doing it your self:?

i'm trying to get twist/locs and know how to twist them myself with my hands but don't know what to use to get it to stay in place when twisting itBest thing to twist hair with when doing it your self:?
Wait how long is your hair? Short: Just use gel and curl. Medium-long: Braid or use your finger to twist your hair and tie it back. Pls wach this video. What do you think of it?

http://www.youtube.com/watch?v=HFkFlEZq-js