Tired of nine zillion revisions of your posts created on your WordPress site?
Open up wp-config.php with a nice editor like Emacs or Pico/Nano or VI and add:
define('WP_POST_REVISIONS', false );
to disable post revisions completely.
Or, if you just want to limit the number of revisions WordPress keeps:
define('WP_POST_REVISIONS', 3);
Of course, this is just a simple Google query away from you:
http://lmgtfy.com/?q=limit+number+of+revisions+in+wordpress
Or, as it happens:
http://bit.ly/Hi9T1Y