Personal autotext etc:
It is possible to store your own autotext, macros or toolbars in your Normal.dot.
If you do so, and wish to retain them there is some extra work involved.
Storing addresses for Invoice template:
If you send the same people invoices it can be useful to keep their addresses on hand.
For a micro-business the simplest is to store it in a Word table.
However, if you use Outlook and keep the addresses up to date, you can get them
from there.
Or you may already have a file - in which case it may be possible to use that.