Extract interface with Reflector
Reflector is always the first thing that goes in my .NET toolbox when I install a new machine, and it gets better every release. Most recent find: The “outline” option, which simply displays the interface of a class or namespace.
Why is this significant? I needed to extract an interface from a class, so I fired up Reflector, clicked “outline” and whammo; there's my interface (and then some).
