Remember the "feeling lucky" button on Google? Nobody uses it, but it's been there from the beginning. For those who don't, go to http://google.com and hit lucky button for a search string "french military victories".
The suggestion is to add a "I'm feeling lucky" button to food delivery sites like 10bis.co.il to order random lunch to your registered address (without telling you what's going to arrive, of course). I think this could really save some useful working hours..