Just playing about with some in-browser modifications of my theme earlier today. Moved the breadcrumbs section above the sidebar so it takes up the full width of the site, and played around with the post display css to get two posts to show up per line.

It’s not exactly as I want it. I want the first post to show at full width, with more content on display.

Just came across this on the WordPress site, which should help me out, though I’ll need to look into how to change the specific length of the post excerpt, so it displays far more of the post than the others.