Has anyone ever donated their hair before? If so, how much did you donate? Which organization did you do it through? Are some organizations better than others?

My hair has gotten super long and postpartum shedding is in full force. It is driving me crazy having so many superlong hairs everywhere! But I figure if my hair is this long and I'm going to cut it off, I might as well donate it to help someone else out in the process. So I'm hoping to learn a little bit more as I have never done this before!