Sure, that was a lesson I learned from such (though some software did/does not allow to save). Even auto saved 'lagged' behind back then. Even 5 minutes can be

Sure, that was a lesson I learned from such (though some software did/does not allow to save). Even auto saved 'lagged' behind back then. Even 5 minutes can be a big difference if you made changes but can't memorize all of them. Nowadays, even fast software such as Sublime Text autosaves somewhere in homedir.