Hanging artwork in your home can be disastrous for your walls. To avoid marking your walls with holes from misplaced nails, plan ahead. Rip open a brown paper grocery bag and trace the artwork on the paper. Do this for all the pieces of artwork you plan on hanging. Tape each piece to the wall and move them around until you're happy with the arrangement. Then hammer the nail through the paper, rip off the template and hang the artwork: A perfect placement every single time.