I came across an interesting little post about how to write (and edit) a blog post which is fairly realistic about how the process really happens. I’m not quite as rigorous on the editing now that I’m trying to put something out each day.
Randomly think of a thing. Let it bump around your head a bit. If the bumping gets too loud, start writing the words with the nearest writing device. See how far you get. The more words usually mean a higher degree of personal interest. Stop when it suits you.
How to Write a Blog Post by Michael Lopp (Rands)