Redeveloping WordTutor
RoutedCommandSink

I wrote the RoutedCommandSink classes a couple of years ago to make it easier to consume WPF commands in my applications. The non-generic class RoutedCommandSink works for commands without parameters, while RoutedCommandSink<T> handles commands that need parameters. Because the two classes are so similar, RoutedCommandSinkBase acts as a common base class for both.