Just curious to know, how do you guys go about planning your flash games.

Personally, I've found chucking down any ideas that might spring into my head on a peice of paper to be the most beneficial, but it's also inconsistent and a tad untidy at times.. So the idea of this thread is to share what you find do be the most efficient planning method(s), and hopefully others (such as myself) can hopefully pick up a few good habits.

Obviously, any tips, tricks, good habits and examples are welcome.