I joined KQED (one of the several NPR affiliates in the area) and got a cool KQED sticker. If I attach it I can drive around and be all sanctimonious about the other leeches on the highway.
I suspect the bay area must have one of the highest NPR listenerships in the states. I can make a sideways joke about some bit i heard on Car Talk and half the room will laugh. It’s uncanny.