Once in a while you need to paste one of these long strings into your C# code. I've set recently a record by pasting an exported SharePoint 2007 RSS Viewer Web Part: more than 400 lines! If it's only once during the solution development it's doable: you could get it well formatted using some Search and Replace with Regular Expressions. But what if you have to paste a dozen of such strings in your code?
That's when I thought that a tool would make life easier: Imtech C# String Converter. It's all for free so don't hesitate and try it out.