Workshopping, that is. I thought I'd mention one that I've found has knocked my writing up to a whole new level, and yeah that's a cliche, but this is a blog, not my w.i.p.
Donald Maass holds Intensive Workshops in different places around the country every year. And by INTENSIVE, I mean intensive. It's an entire week of all day working on being a better writer. Don and his great crew are fabulous at providing myriad tools for crafting a great novel. No, by that I don't mean a guaranteed best seller, I've done my best work on my current w.i.p. that I've ever done, and all my writing is stronger.
Yes, it takes time and money, but for me it was both EXTREMELY well spent. I'm planning on going again, but first I'm writing and writing...
Secret: You get better at something by practicing it. You also get better by working with people who have the "secrets" of how to create. You also get better by being with your peers. The secret is balancing the different elements--with the emphasis on doing the work!