(Imagine that title in my best orc voice for maximum effect. Because when I'm not getting my Zug Zug on--if you know what I mean--then it's pretty accurate.)
Quantity produces quality. If you only write a few things, you're doomed.
Ironic that I know so many would-be writers who write as little as possible. Many of my fellow students at SFSU would turn in a single short story over and over in class after class for years. No, I'm not kidding; literally for years.