If you're a writer, regardless of what genre it is you write for, you may like to check out these tips on fashion in fiction, so you can decide how much to reveal about what your characters are wearing, and learn how to have their clothing help tell us about the character and the world they live in.
Speaking of the world your characters live in, here's a post on worldbuilding, which will help you to create a framework to hang your story on.
However, if you're a self-published author, and your thoughts are now on your book's cover, here's a post on how to get a great cover design for your book, complete with tips on how to decide if it's right for the book in question.
On the other hand, self-published or not, if you're an author whose thoughts are on blog posts right now, you may be interested in this post about what an author should blog about, which also contains some tips on what you should avoid in your blog posts. Of course, it's up to you what you blog about, but I figured I'd share the post anyhow, just in case someone needs some advice in that area.
Finally, remember: live a lot, write a lot.