The only way a "grand" is gonna work for you imo is to invest in tools to progress you further in your job (if thats the sort of job your in)

If you had the best idea in the world than maybe that grand would of made you the next sir branson?

To invest a sum of money you need to be the doing it and making it happen with your idea....not giving it to some one to 'invests' your money because people/compainys don't invests your money for your own good....

How bout put it towards bricks and morter if you havent?....