Word: Moving styles between documents

This lets you update a style in a template, and then propagate the modified style to the documents that were created with that template.
http://superuser.com/questions/479090/copy-styles-from-office-2010-word-document-to-another

1. Open the target document.
2. Open the Styles window on the right, then click the Manage Styles button at the bottom.
3. Click Import/Export.
4. Choose the source document, then off you go.