Tots to Teens: Growing Triangulation

This makes me think of house visits in Finland.  It's a little stark for some but actually very practical for those on a budget (or those who rent their space).  You take a clean simple room (white on white on white!) and bring in the focal graphic either through a wall treatment or bedding.  A few isolated pops of color (your choice!) and your visual symphony is complete.

From hereherehere, and here.