Reach. And to an extent money.

Money is easy-ish to get, but reach takes time to build.

MOst importantly though, I don't have any ideas I would consider good. Or possibly ideas I would consider myself able to carry out. Probably both.

Maybe try the altucher approach: http://www.jamesaltucher.com/2011/02/how-to-be-the-luckiest-... Basically he picks random topics and writes lots of ideas about them every day in order to train his mind to think in that way.