Visit http://knitfreedom.com/classes/magic-loop-knitting to watch the entire video course and get more great tips to help you learn how to knit in the round using the magic loop technique.
Sometimes, when you are working on a large-diameter Magic Loop project, your loops of cable can disappear.
You just have too many stitches to fit them comfortably on a 40-- or 47-inch needle. But you still want to use Magic Loop, and you certainly don't want to buy a shorter needle!
I ran into this problem while making a basic Magic Loop hat for a friend of mine — his head is 23"around, which is just too big to maintain two loops of cable.
So, I used a modified form of Magic Loop called the Traveling Loop, using just one large loop of cable.
http://www.youtube.com/watch?v=qyd0BkKC8tU