In our house, curse words aren't taboo. There's no punishment if someone mutters a frustrated word after dropping something or losing a game . At first glance, that might sound like an unusual parenting choice, maybe even a permissive one. The truth is, letting go of this particular rule has made our home calmer and our conversations more honest. I'm a mom of three — ages 6, 12, and 15 — and like most parents, I've had to learn that not every battle is worth fighting . Parenting often comes