The only person I will do mending for is my husband, cause he understands my passion (obsession) for quilting.
Am also asked if I will teach people to knit or crochet and my easy way out is to say "sorry I'm left handed it won't work)
I own a midarm quilting frame and I am constantly asked if I will quilt someones quilt for them. They tend to get offended if I say no, SO I overprice myself, tell them it will take 6 months and they take it to the overpriced longarmer in our area.
I agree with others too that the moment you start taking orders it turns into work and that is not how I do things.