Computer: Keyboard: Key
Big Fat Scroll Lock Key   (+5)  [vote for, against]
Curtails damage to open documents made by falling keyboards

[Scroll lock] has usurped the [¬`¦] key's position as the most useless key on the keyboard. To restore the [¬`¦] key's rightful place as the most neglected key on the keyboard, I plan to make the [scroll lock] slightly taller and perhaps fatter than its kindred keys.

If your keyboard falls off the desk and on to the floor, as mine so often does, the [big fat scroll lock] key will likely hit the floor first. This will remove influence from more dangerous keys like [f1] and [del], leaving your desktop unscathed from the incident.
-- spiritualized, May 15 2005

You could extend this to the point where the more useful the key is, the smaller it is.
Actually, i've always found `, ¬ and ¦ very useful for typing formal logic.
-- nineteenthly, May 15 2005

random, halfbakery