[cassianoleal]

That's what I do. It definitely helps. Heavy vi(m) users tend to map it to Escape, but I find that:

- I use Control a lot more than Escape (especially in the shell, where I spend a lot of time); and

- Escape is already not in a horrible position, and it's not a modifier key so I don't need to twist and curl my wrist and fingers in order to type a combination of keys.

[urxvtcd]

I have capslock configured to act as control when held down, and as escape when tapped. Best thing since sliced bread.

[malnourish]

I don't understand why one would set Caps Lock to Escape. As a vim user, I set it ton Control. Control+[ is effective for my Escape needs.