188
Obscure button tier list
(sh.itjust.works)
Post funny things about programming here! (Or just rant about your favourite programming language.)
Pressing ScrLk twice and then the number of the port switches to this port on the KVM switch in the office. Very specific use case, but still.
Pause ... I have no idea. If I remember correctly you can, well, pause terminal output with it, but I never tried.
The rest of the keys I use regularly.