Semi-gloss white paint is a standard go-to for doors and trim, but black is a less-expected, but very sophisticated alternative. In a suite at the Merchant in Salem, Massachusetts, Boston-based designer Rachel Reider painted ceiling beams, doors, moldings and baseboards in a high gloss black which immediately adds a glamorous edge. In keeping with the look, note the lampshades are black too. It's an inexpensive way to really transform the mood of a room.