More than any other step on this list, this one is essential. You cannot unlock the creativity and discretionary effort of your employees if they always "need a moment to check with the manager" or have to worry that they're overstepping.
Herve Humler, cofounder of The Ritz-Carlton Hotel Company, which has famously built intense customer loyalty via "wow" customer service, said that the company's employees "have total power, and all the resources of our organization, to create these moments, these stories, on their own, without needing to ask permission, without needing to involve management, without needing to worry that they're going too far. The time spent creating these stories isn't time taken out of their job; this time spent is their job."