[deathanatos]

And if you're one of those skeptics that thinks "but I sometimes use caps lock to type C_STYLE_CONSTANTS, and I need it!", there's a wonderful thing I call two-shift caps lock: you press both shift keys at the same time, and it toggles caps lock. Now you have your Shift keys, and your caps lock, and a key that really truly has no purpose. Now go forth into the world, and remap thy keyboard.

In GNOME: System → Preferences → Keyboard; Layouts; Options; Miscellaneous compatibility options → "Both Shift-Keys together toggle Caps Lock" (You can also remap Caps Lock in this same dialog, so the change isn't just for Vim. It's under "Caps Lock key behavior". Also, having a compose key is awesome.)