A friend of mine recommended this tool. I've not played with it yet but didn't want to loose the link - it's http://www.codeplex.com/CloneDetectiveVS
He says it's a little utility delivered as a non intrusive VS.2008 add-in that helps identify duplicate code with an intuitive UI. He finds it handy for refactoring code to be more concise and uses it to remove the “copy/paste” pattern he finds in the legacy product on which he works.
