WordPress’ Autosave feature was getting on my nerves. Often I make several revisions of a page before I save and WordPress was saving intermediate drafts that I didn’t want to keep.

I was surprised to find that there is no option in WordPress core to disable Autosave. Thankfully though it is incredibly easy to disable through editing the source or creating a custom plugin.

The following code (take from the reference link below) will function as a WordPress plugin and will disable autosave (works in WordPress 2.8)

<?php
/*
Plugin Name: Disable Autosave
*/
function disable_autosave() {
wp_deregister_script('autosave');
}
add_action( 'wp_print_scripts', 'disable_autosave' );
?>

References

Adjust WordPress Autosave or Disable It Completely