Balling yarn

I don't ball my yarn. I'm comfortable enough with untangling, and don't get very annoyed with it, so I just knit from the ball. There are two exceptions:

1) I buy yarn in a hank, absolutely mus be balled. If I buy it online, I ball it myself, if I buy it at a yarn store, they do that for me.

2) On the rare occasion I spin with my drop spindle, when my spindle is full, I ball the yarn! It is much easier to find misplaced ends and get it off well, if you ball before you take the hole out of the stick.