[npsomaratna]

Programmer from DOS times here. I've ingrained pressing CTRL + S every few seconds as a reflex. That has saved my bacon more than a few times.

[Doxin]

I've started programming later than DOS (probably around win95 or so) but I still have a reflex to hit ctrl-s three times basically any time I stop typing.

You only need to lose hours of work once or twice to learn that lesson!