I sometimes use feats. Especially when playing the charisma-based classes, warlock and sorcerer. I usually go with tiefling or halfelf there, get 17 charisma, steal Volos Ersatzeye and push the charisma to 18. On level 4 I choose a feat then. With the sorcerer the warlock spell list for Hex ( very nice combo, it feels a bit like multiclassing sorcerlock) and with warlock it depends on what I want to do.
You could do that with other stats/classes with Auntie Ethels hair, but I normally play good and don't want to throw Mayrina under the bus ... plus Auntie Ethels fight is really bugged for me, so the deal doesn't pop up anymore.