the others are, having a good idea, developing your idea, making it
"manufacturable," packaging, having the money for molds, tooling, R&D, and
a
production run.


I've got a leg up on most of that. I build plastic injection molds for a
living, so when I came up with a good idea, I built a mold from scraps I had
laying around the shop. I had a great idea, I had a patent, I had a mold, I
had great connections with molders, I figured the hard part was over. WRONG!
The hard part for me is figuring out how to market the darn thing at a price
the product can afford.