If these sections are not quite large enough to warrent an entire file, you may want to use information separators. These can be as simple as an <HR> or an inline image :
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This simply allows for better readability and logical separation of ideas. In these documents, you see I use an >HR< to separate out the title block from the main document. I also use a red-line to separate out the end of the page. These are examples of Information Breaks.