Writing Tips for a Diverse Audience

Today, at ProEdit's technical writing course at SPSU, the following question was asked:

"What can you do if the audience you are writing for includes a mix of nonspecialists, technicians, and experts?"

Jacque Henson, ProEdit's Manager of Information Development, offered these great tips for addressing the challenge:

1. State which audience you are addressing in the heading of each section. Make the headings bold so they're easy to see.
2. Create modules. This introduces the flexibility to proceed quickly and skip sections.
3. Include navigational aids, like a table of contents, site map, appendix, and a list of figures and captions.
4. Use examples. This will help the novice apply the new information in a real-world setting and allow advanced users to confirm their knowledge. 
5. Include graphics.

What are your tips for addressing this issue?