I use Org Mode when authoring all of my posts. I let Org Mode handle exporting my completed posts to HTML, if you want to follow along at home you'll need to have Org-Mode installed and be fairly comfortable using it.

If you use Emacs for any sort of meaningful work and you're not actively using Org Mode, you need to revisit this as soon as humanly possible. It's conceivable you have your own system, carefully crafted and then fine-tuned over the years into a razor sharp knife that can disembowel the dreary red-taped monster of your work-life, spilling out the most crucial and important information onto the floor so that you can nudge and prod it with your booted foot, but I sincerely doubt it. It's more likely that you have information spread all over your desk, your laptop, your office, perhaps your office floor. Post-it notes, the back of errant print-outs so lengthy that you feel guilty eventually (and inevitably) dropping them in the recycling bin, well-meaning "Get Things Done" type applications that strand your critical data on attractive yet inaccessible prison islands. Hear me now: stop whatever your doing and setup Org Mode, then take the time over the next couple of days to migrate all of your to-do items and notes. Trust me, it's the right thing to do.