Hack Of The Night : How to turn a stripped screw

Can I tell you how much fun I had at work today Googling images for "screw" and "stripped"?!.  I don't think I've seen the company firewall blocker pop up so much..  At least I managed to find a quality picture amongst all of the "other stuff".  

So when it comes to a screw that is already stripped, or maybe you tightened it too much and accidentally stripped it, don't worry, you can still use it.  All you need it a trip to your junk drawer to find you bag of elastics..