I have written a lot about Clarion, the science fiction and fantasy writing workshop I took back in 2001—in particular my Clarion journal and my six-post series on what to do if you can’t go to Clarion.
If you want to go to Clarion—and if you’re an aspiring sf&f writer, I highly recommend it—you’ll be glad to hear that the application period has just opened.
It was one of the most useful things I’ve done to improve my craft. It was also a lot of fun.
It is only modestly expensive in terms of cost, and there are scholarships to help those who in need. It is mostly expensive in terms of time: six weeks. That’s a long time to absent yourself from your job or your family, but Clarion makes very good use of all that time—every minute is well spent.