Etiquette isn't just something you need on formal occasions. It's a blueprint for how to behave every day, in every situation, to make interactions between people smooth and pleasant, with no ruffled feathers, misunderstandings or hurt feelings. It helps you smoothly transition from college to corporate life, and from professional obligations to personal ones. Etiquette doesn't exist to add a layer of extra rules to life--it's there to guide us to treat each other with kindness and consideration in our personal and professional lives.