Creativity and good ideas, can I learn how to?

[SpectreX]

I once read, can't remember who wrote it, that good ideas come from tons and tons of bad ideas.
That it is best to keep drawing / writing down each idea no matter how stupid or boring it looks and that once in a while a gem will come out of one of those ideas.

So yea, I would suggest to do what you said, just do sketches of every idea you get :)