Everytime you’re defining a plugin setting or a custom field value, WordPress uses the wp-options table of your database to record it. Sure, you can use PhpMyAdmin to modify that table, but there’s even easier.
To easily access to the wp-options table, juste enter the following url in your browser adress bar:
You’ll see a control panel appearing. From it, you can modify almost all data recorded in the wp-options table. Of course, don’t do anything unless you know what you’re doing!
Thanks to Michael Castilla for this awesome trick!