I don't even bother trying. Hoarding "ideas" doesn't make any sense to me.
I will always have ideas. The Halfbakery website is full of people's ideas. My mom has ideas. Everyone has ideas. Someone's probably had the very same idea already.
Ideas are so cheap and common, they're almost worthless by themselves.
I put far more value into execution. Actually making an idea happen, that's where the value is. In order to make ideas happen, I need resources, so what I need to concentrate on right now is developing lots and lots of resources.
Whenever I need an analogy, I think of ideas as being seeds. You can go to just about any store these days and pick up a little packet of seeds for real cheap. Each one of those seeds has the potential to become something beautiful, but only if you give it soil and water and sunshine and a place to grow.
So before I go trying to figure out where to store all my piles of packets of seeds, I should figure out how I'm going to get the farmland I need to grow them all in the first place.