There are two additional tags that can be used to give additional structure to the document these are the subsection and entry tags. The subsection tag creates a new (indented) top level entry (like a page entry) in the contents page. No text is added to the page itself (unlike with the page or section tag). The entry tag creates a new contents page entry (using the mandatory name attribute as the text). It places an anchor tag in the current page, but no other text - leaving that to the user.
This is a Demonstration of the subsection/entry tags - view the document source to see how they have been used, and look at the contents page to see how the subsection has been added.
Most of these tricks assume a bit more knowledge of XML.
CDATA sections can be useful to format text that would otherwise require to many escapes, however it does make the source look untidy.