Journal Editorial Report: The week's best and worst from Kim Strassel, Kyle Peterson, Allysia Finley and Dan Henninger. Photo: Rodin Eckenroth/Getty Images/U.S. Air Force/Reuters/Tim Warner/Getty ...

The shape of crown molding, smaller at the bottom and wider at the top, gives it a shelf-like quality that also makes it a great choice for — you guessed it — shelves. Using regular molding as a shelf ...