The primary change has been to provide only summaries of the blog posts on the front page, rather than the posts in their entirety. This makes it easier to see what's been posted recently. I decided this was the way to go after realizing that a lot of visitors to the site would look only at the top post and miss all the posts below it.
I also centered the entire site in the browser window, rather than having it hug the left-hand side.
Hopefully none of these changes will prove disruptive in any way!