Hallway and Concrete Floor Colorful, scattered coat hooks by the architect-designers Julia Jamrozik and Coryn Kempster create a functional, eye-catching wall that works well whether the hooks are used for hanging or just for decoration.  Photo 11 of 13 in 6 Hallway Hacks to Turn Them Into Usable Space from A Net-Zero Home in Canada Boasts a Striking Saw-Toothed Roof