I came across two useful links in my quest to self-publish affordably:
For those of us who need further explanation than J. Daniel Sawyer’s Smashwords template for OpenOffice gives J.M. Porup has created a supplement to the Smashwords Style Guide for Libreoffice/OpenOffice.
Those of us who want to create an epub file to upload directly into Smashwords can follow the instructions in Bryan Behrenshausen’s How to create an eBook the open source way.
I can’t wait to try them out but need to get some of my works edited first.