A tried and true picture hanging method. Cut scrap paper to the size of the frame and mark the nail location on the paper. Using painter's tape, move the paper templates around the wall until satisfied. Then hammer the nail through the marks. Remove the paper template and hang!.... Genius!!!
How to Arrange a Picture Display Use craft paper to trace and cutout each item to be hung. Use painters tape to put them up on the wall which allows you to move them around easily. Also label each paper square to get just the right mix of photos and art pieces.