The diagram below is taken from Instant Home Writing Kit's chapter on the Template Adaptation Method™ (page 41). This is a technique that I developed over the years to combat writer's block and allow you to write documents quickly and easily using samples of similar documents.
That special Bonus Chapter on the Template Adaptation Method™ walks you through some examples, step-by-step, showing you exactly how to use the TAM to create a completely new document working from an existing one. Essentially, all you need to get started is a real-life sample of the type of document you want to write and then apply the Template Adaptation Method™. It's easy once you know how to use it.