If there is one thing that you should do when you have your idea or your invention, you need to go to an Invention Submission Corp.  Actually it is not really a need but if you want to make money out of your invention well, they will evaluate the value of your product and/or idea.  Which is good if you come to think about it. It is good because you will be able to decide for yourself whether if it is worth working at it in the end.  If you will make money out of the trouble that you will be working at for several months.