I had done that for a while in my living room. So I put a picture on the wall. That wasn't it.
Then I got lamps. That helped, but still wasn't 'It.'
One day, when I was trying to sleep, it dawned on me: I didn't have any shelves. I didn't have any place to set 'things.' I didn't have a place for a sense of ME. My walls were also practically bare. Painted, but bare.
I don't care of bookcases, but I knew I wanted shelving. Built-ins were out of the question as they can be somewhat expensive and require more handy work than is all of my family, combined.
As with a lot of my ideas, I started with research. I figured out what I wanted first and then researched the options available. It happens that my beloved Ikea has floating shelves. I liked the options at Pottery Barn, but let's be honest: Do I seem like the person to buy the Pottery Barn option over the Ikea option? That would be a no (under most circumstances).
To see if my plan would really work out, I resorted to making a life-size representation. I seem to do that a lot, right? It works.