How can I force WordPress to give a proper file name for images like "http://www.mysite.com/wp-content/uploads/2012/07/mona_lisa_painting.jpg" instead of "http://www.mysite.com/wp-content/uploads/2012/07/28.jpg".
Do I need any plugin? Or should I not to use standard "Set featured image" upload form?
I heard that it's very important for google. Thanks to everyone!