I like playing for family functions and never consider charging or accepting money. I play at my church's carnival and a non profit nursing home that is run by nuns. They took care of my mother in law in a moment of need and my wife and I will forever be greatfull. I do have to decline offers from "friends" parties from time to time. I politely tell them I'm already booked, even if I'm "booked" to play in my living room or a date night with my wife.