Google is finally making it possible to set a default font, font size and other style option to be used with all documents. Currently, the document editor always defaults to Arial 11 since that's what Google Docs defines as "Normal Text."
You can change any of the style settings of course, font, color and so on, but they all revert to the default when a new document is started.
It's a minor inconvenience of course, but for those creating several documents every day it is annoying.
to the Google Operating System blog, Google is now enabling users to customize the Paragraph Styles, Normal Text, Heading 1 and so on, to suit their needs, but also to create completely new custom ones.
The document editor is also introducing several new fonts from its Web Fonts repository. These changes are coming, but they aren't available to most users yet.