[smackeyacky]

In Microsoft Word, you can use "View->Outline".

This displays something cut-down into the structure of the document, so the headings can be shrunk with their included text. I found it in the past to be a really useful way to build a document before it's formatted. i.e. put in all the headings you think you will need first, then gradually fill out the text under each heading. Once the document starts to flesh out, you will find bits that naturally fit together, so you can restructure and have something cohesive.

After that, format away in the normal mode.