One of my colleagues asked me about whether
jk is a good mapping for escape. I've always used
<Esc> for leaving Insert mode, but I don't think it's unreasonable to want to use a key combination that's easier to press.
If you want to try
jk, then you need to
:imap jk <Esc>
Avoid the escape key on the Vim Wiki has lots more examples, including
<Space> for entering Insert mode.
Does anyone out there use any alternatives?