Since I discovered Amy's video on winding a centre-pull ball, I'm addicted to making them! I hated how my balls would travel all over the place, and even putting them in a basket or something would create trouble. I hadn't bought any wool that came in hanks before my STR, so balling my wool/yarn wasn't completely necessary. Now I'm finding reasons to do it! I will wind up frogged yarn, the ends of my skeins after a project. I will even wind up a nearly finished skein since I find that it "feeds" better than fighting with the "floppy skein end syndrome". I must admit that I feel like little Jack Horner when winding a ball... a plum on my thumb!