Okay, I'll say it. I'm in complete awe of Sue Grafton. She's managed to create a great protagonist, Kinsey Millhone, and write 21 stories about her. The latest one is U IS FOR UNDERTOW. And she plans to go the distance, alphabet-wise, all the way to Z IS FOR ZERO.
Grafton was recently interviewed by Sarah Weinman, who put a link to the interview on her blog. Grafton talks about how hard it was to write her latest book, which like many of her later works deviates from the "first person only" perspective and jumps around in time. She says the story was difficult to structure and, at times, she got so frustrated with the writing process, she "nearly burst into tears."
I guess it's true that fiction writing never gets any easier, no matter how long you do it. (And now I can't wait to read this!)