http://www.perlmonks.org?node_id=509283


in reply to The most useless key on my keyboard is:

Even less than Scroll Lock is Num Lock -- it's always on, or I figure out how to turn it on from boot. Sometimes, about once a year, I use the Scroll Lock key. The Windows "menu" key would be the least used, but sometimes I hit it by accident.

-QM
--
Quantum Mechanics: The dreams stuff is made of