The tip that resonates most is from Leatrice Eiseman, the executive director of the Pantone Color Institute: "a “bordello red” — a shade that is too bright or too glossy — will be hard to live with over time". We can't agree more! From our own experience, beware of glossy, dark paint — it will highlight any imperfection in the walls!
See the experts' choices of red paint and tips on choosing a red that will work for you: Room to Improve: I want to paint a room red. How can I make sure it will feel livable?