Speaking of useful keyboard "hacks" and since I now know that you use gnome:
In the gnome tweak tool you can remap _caps lock_ to actually be something useful and not the probably most annoying thing related to computers.
... I can't be the only one pressing it unintentionally and freaking out about it, am I?
Dies ist die soziale Blase in der "ned g'mauld und g'nuch g'lobd wird"!