Using .woff fonts to further reduce number of blocking CSS resources, with fallbacks to make it compatible with old browsers.

Loading custom font is slow even if you’re using CDN. You can use deferred font loading and make use of localStorage for storing loaded font.

How to defer loading (lazy-load) stylesheet with JavaScript to speedup rendering process and improve PageSpeed score.

Static assets bundling # I wrote a post about static assets combine on jekyll but the idea is similar to other framework. You can even do this on Wordpress via plugin called W3TC IIRC. As for your theme’s images, use CSS sprites to combine it to a single image. There are many tools for this purpose. This step is critial because number of requests has a very high impact on page load.