One other thing is to turn off most of the "AutoFormat as you type" options. This is what mine looks like:

00 deleteme 1.png


See also Templates in Microsoft Word. A template can be a blank that already has the Styles you need; it can be a letterhead ready to go; it can contain all sorts of boilerplate that you can call in at will (called AutoText).



Automated Boilerplate Using Microsoft Word