What a awesome video Stuart! I have only made it half through the video by now… I will finish it later…
One suggestion though, which is a kinda of optimized work flow I´m always using.
Insted of using the front tail log from putty (command line). Open up your browser and point it to URL http://ip_of_the_system:9001
Then you´ll have front tail logging running in a browser window real time. And you have an filter option as well.
I use this methode all the time, cause in case I´ve done something wrong, (which I ofcoúse never do 
), when creating or changing manual files (like items, things, rules etc), the log will tell me at the very second I save the file.
So I always keep an eye on the log. Also to make sure openhab is actually reading the file/changes.
This methode has saved me a lot of concerns in time, when struggling getting things to work, cause beside promting when things are going wrong, it also show/give me an indication of why, making it alot easier to fix.
There is a slight downside though:
When having a big system where lots are going on at the same time. This window will scroll VERY fast. I have aprox 3-5 seconds from a saved file to spot any issues… Thats why I keep it open 
You can use the filtering option if you know what filter to set. But normally I just keep the window open. And in case of an issue/error/warning, there wil be a read mark, which is faster to spot even in 3-5 seconds. Then I have the option to scroll back and read more closely in case of any doubts.
Again, this is just a suggestion for an optimized workflow, rather than using the command line. Hope anyone finds it usefull.