add extensions every other day
I suggested one at a time, but I think this is a good time frame. If you have a lot of readers, you can even go longer between "upgrades" (i.e., adding new plugins) and give them a chance to experience it, and ask for their feedback. This is far past the getting off the ground point, but just because you've been up and running for a while doesn't mean you shouldn't still be careful.
I have thought about writing some tutorials for WP, Graphene, HTML, and CSS, but GIYF.
(quoting myself here) Actually, I would like to write some expanded versions of some of my posts in this forum, such as this one, but generalized for WordPress or even just creating your own site. Still thinking about how this might look.