I'm totally controlled. My scraps bin are growing because of that :-) I have found some pattern that I like to work with scraps. They have in common of using scraps to create specific shapes (boat, feather, fox). This way, I feel there is some harmony. Low volume fabrics are nice too to create controlled scrappy. I have found also that I can use more mismatched fabric and colors if my square are little (2,5 or 3,5 inches). But it's a matter of personal taste.