We've lived in our little house for a little over two months now. Slowly, but steadily, we've been adding things to complete the look of each room. No matter how many things we added to each room (or took away), things didn't feel quite right.
For some reason we hadn't hung our small collection of prints on the wall yet. Yesterday, we pulled out the hammer, level, and nails, and got to work. After we finished, we stepped back, and the living room finally felt right.
When in doubt, hang something pretty on the wall. It changes everything.