I have a lot of unused web bookmarks, either because I don't have a use for that information anymore or that I've lost interest in the subject. But for the life of me I don't know why I have a bookmark for Extreme Ironing. "The sport that is 'extreme ironing' is an outdoor activity that combines the danger and excitement of an 'extreme' sport with the satisfaction of a well pressed shirt." I didn't even know such a thing existed until I was cleaning out my own bookmark folder.