For me, it was this picture. I've lusted after corrugated metal for a very long time, but haven't had the opportunity to use it in my house. I was always thinking along the lines of wainscoting or facing a kitchen island with it. But to me, this is brilliant. And stunning. And perfection.
This photo is going into my idea file. What ideas do you have stashed away that you're longing to do someday?