Have you considered a Google Blogger site?
Those incredibly awful sites with the immovable header obscuring everything and broken scrollbars and stuff? No, I've never considered them, although I'm glad they're not as insecure and maintenance heavy as the other solutions... (I already have AdSense on gwern.net, and hosting isn't really a big cost right now.)
If it's worth saying, but not worth its own post, even in Discussion, it goes here.