I love the Mathematica Stack Exchange just for these sorts of things. Another one of my favorites that was previously on HN: <a href="http://mathematica.stackexchange.com/questions/5676/how-to-peel-the-labels-from-marmalade-jars-using-mathematica" rel="nofollow">http://mathematica.stackexchange.com/questions/5676/how-to-p...</a>