Learn how to write an immediate resignation letter with our comprehensive guide, including tips, examples, and a customizable template. Start with the facts and be direct.Start with a two weeks notice letter. This will serve as a formal, written documentation of your intent to leave and your transition timeline. In this article, we discuss what a retail resignation letter is, the key parts you should include in the letter and the steps to writing one. Use one of our resignation letter templates. In this article, we cover everything you need to know about writing a resignation letter without notice and provide an example to get you started. Please accept this letter as my formal resignation. Today will be my last day of work. Having delivered my resignation.