The interesting thing is that I decided to use this piece of software called Twine. It's essentially a piece of software that let's you make interactive websites. I always find it easier to lay out ideas and game flow in my sketchbook, so finding software that mimics this (and is free) is always a plus. Its exported project is also a webpage, which makes it widely available for others to experience. I think it's a wonderful prototyping tool and would look into using it more in the future.
Related Link: Mailing a Package