I am a person obsessed by the pursuit of my next good idea be it big or small. To me the key to originality and good ideas lies in the understanding that absolute originality is an illusion. What we create always partially reflects our experiences and environment whether it is obvious to us or not.
Idea theft is a big concern when you are a creative but can make you an island if you let it. I have met a lot of really good creative people who worry about this to such a degree that their work does not evolve in the way it should. It is true there are 'Sharks' out there ready to prey on inexperienced creatives new ideas but I say the only way to truly protect your self from this is to keep coming up with new ideas.
All the time you spend protecting your one good idea could be spent coming up with 3 more even better ones.
The internet has effectively made us all creative 'watch dogs' and there is less place to hide for those 'Sharks' to hide when they try and take a bite out of someone else's idea.
Through history all the best ideas and concepts have come through cross pollination. Don't make yourself an island. Find some fellow creatives you can work with and who knows where your ideas may take you!
Writing and Illustration to me has been my number one passion ever since I can remember. I feel very fortunate that I get to do it every day.