ok a tad longer than a long bob, but you get the idea. this length has been good to me, esp when I'm wearing it down. super manageable and lots of movement and body. BUT it doesnt make a full looking bun, topknot or ponytail and I kind of miss that!
youtube "bantu knots". you'll see how to twirl. best with damp hair, use a nice mousse, its just right. then tie a scarf around head and sleep on it. the tip about not making them too small is dead on, the curls will be insanely tight! A good no heat hairstyle!