I see numerous references to a campaign journal. So far I have been unable to find a template or example? Is there one, and if not, what is recommended to record in one?
I don't think a template exists, but you can have a look at all campaigns journals here. They are also called Follow Alongs
https://stmforum.com/forum/forumdisp...-Follow-Alongs
Long time ago I used an Excel table.
In the first column each line was a campaign and then each column a day.
When I wanted to add something I just made a new column right from the campaign names, put the date in the top field and made notes about what changes I made.
I've been using excell sheets for a while and I also used to take notes of what I did and how it affected performance, in a standard doc file.
These were solely for my own use and just to make sure I wouldn't forget about important changes that could have affected the performance of my campaigns. So no special format, just a simple sheet or doc, with date and what changes I made. On top of that, I had a day-to-day revenue/spend sheet where I entered the numbers to keep track of everything.
There are no standardized formats for affiliate marketing as far as I know, many of us simple decided to have such docs in order to not get lost in the ocean of info and frequent changes. So whatever format works for you, just do it that way 
The one from @jeremie works well. Just something to keep notes and be organized.