Design principles...

3D Walkthrough: "Architect Sarah Susanka gives a set of 'tools' -- key principles to using Space, Light, and Order -- to help understand, and create that illusive sense of home we all crave. Here, along with building-science expert Steve Easley and Sandy Teger and Dave Waks, connected-home designers, we'll show you the prototype for a new kind of American home -- one to fit the scale and budget of everyone who wants a house that feels like home."