DIY: Gallery Wall Arrangement Ideas - plus many other guides, such as yardage guides for upholstered furniture, window treatment & terminology guides, area rug size guides, etc. This is an excellent resource!!!
Inspire Me - Bought picture frames from Target a few years back and made a collage on a hall wall of family and friends. After placing photos in frames I placed them on the floor first to figure out where I wanted them before I, oops... I mean my husband hung them!