The only way for these super-productive people to continue to grow professionally without going crazy is periodically to decide what they are not going to do. This is particularly important for people who have just been promoted to a new job. That’s when you really face the pressure to perform and it’s the most difficult to say, “no.” But you must say “no” if you are going to say “yes” to the things that really count—both in your job and in your life.