One of my favorite tools for more efficient writing was recently updated to version 2, which is available for download on GitHub. As Andreas Zeitler explains, the main focus for version 2 was "speed optimization, interaction, accessibility for non-English speakers, and usability". There's also a screencast on YouTube showing the new features.
I use Markdown for Keyboard Maestro on a daily basis to speed up my writing in Sublime Text. In fact, many of the workflows that I'll share when Editorial for iPad will come out have been inspired by Andreas' work.