Beads can also become useful in separating two or three locks that seem determined to spin together and become one huge chunk of mess. Put a bead on the upper part(closer to the root) of the lock in the center of that mess and watch the magic! you won't have to separate those naughties nearly as much.
I just bought my first two beads the other day. Pictures in my album. I got them at Hobby Lobby in the leather/bead section for macrame. They're glass and metal. All sizes of holes available. Some of the best beads you can get are the macrame wooden beads because the holes vary in size and you can get a bunch for very little money. I chose to buy single beads because I'm so picky with designs and whatnot.
I put one bead on just over this lump of a bump on one forelock because the flipping up of the curl at the roots was making me insane. It wouldn't lay down for anything.Well, with the bead in it really helps that lock to behave itself while it knots up some more. I'd suggest keeping watch on how loosely the bead wiggles around, though. You don't want to get in a situation where it gets lock up in there and then you have to cut it off(bead, not lock) once the bead's usefulness is done or you want to change out your beads or shift them around to other locks.
I take mine out before every shampoo for that reason. Just to make sure I CAN get them off! lol