[ruler88]

I learned this from James Altucher - force yourself to write down 10 ideas every day. They can be terrible and impractical ideas, but don't worry about it. The exercise is meant to help you exercise your creativity muscle. After a while, you start to see your creativity muscle improve. After all, you just need a single good idea.

[atsaloli]

That's what I was going to say. I used to do this as a daily drill. It doesn't have to take long. You might feel a little silly doing it, but do it anyway. It does work, and makes it easier to start getting ideas. :) Have fun!