6. Create a design document template for your organization. Show it to coworkers and get feedback about the format and ways that you can make it easier to use. 7. Write the design for a proposed or existing project using the design document format. 8. Take an existing document that your organization uses and rewrite it using the design document format.
last one is an interesting exercise. can be useful to get a good example immediately, without waiting for a project to hit the right phase to generate one.