Everybody has an invention. The question is this....Is there a demand for your invention. My experience with the invention idea companies is that they are out to make money for themselves and will submit your ideas to companies and sites that you can to without spending 10 grand.
If it is a great invention there will be a great demand. Start with google adwords to find out if there is real interest in the product.
Don't stop taking massive action.
Best of Luck,
Michael T. Irvin
michaelirvin.net
My books are available exclusively through Amazon Books. Check out my book "Copywriting Blackbook of Secrets"
Copywriting, Startups, Internet Entrepreneur, Online Marketing, Making Money