Visual Studio Tip: Quickly do manual edits to Project file

Sometimes you need to do manual edits to the visual studio project file e.g. when setting up dependent files : http://stackoverflow.com/a/727915/390330 .
Here's how I do it inside visual studio. Right click the project and select unload project:

Now right click the unloaded project and select Edit as shown:

Now you can use your Visual Studio editor to make the edits you need:

Enjoy!