My DH fully supports my quilting habit. I give all of my quilts away, to friends and to charity, and he loves seeing what I make before it leaves. He is better at color combinations than I am, so often he helps me pick out the fabric as long as I don't spend TOO long in the LQS!
To balance that, he ties fishing flies and donates them and a lot of time to his local fishing group. And I never complain when he wants to go fishing instead of doing his chores around the house. I guess he and I are both lucky to support each other's habits!