This one probably is more down Jools line of interests rather than mine, but it’s one of those “Who Knew” pieces of information.
If you have Window$ 2000 or XP open a command line and type in eudcedit.exe and press enter. This will open a primitive but functional font editor.
There is an excellent article detailing some of the finer points at the University of Heidelberg. I think this should go under “Impediments to Productivity”.