Symmetrical groupings: a nifty way to bring in some big impact, even if your subjects are more small-to-medium than overscale. Intimidated by hanging 12 framed pieces perfectly? Don't be! Lay them out on the floor atop contractor paper. Once they're in place, trace each one directly onto the paper with a pencil or Sharpie. Next, mark exactly where the picture-hanging wire sits on the paper. Tape the contractor paper up on the wall, use a hammer to add picture nails into the marked area of the paper, tear down the paper, then hang your art. Trust me, it works. Trying to eyeball it can become a Swiss cheese drywall catastrophe.