I very often fail in identifying the things that need to be added to the log. List running docker containers? So easy it's not necessary to log. That one obscur

I very often fail in identifying the things that need to be added to the log. List running docker containers? So easy it's not necessary to log. That one obscure bug that took days to fix? So many things were tried that didn't lead to success, that the path to the solution is not clear anymore.