I hate WordPress. Being a lazy man I would rather be laying on the beach reading back issues of 2000AD, than re-inserting code into a freshly updated WordPress blog.
So I installed the seo title plugin
It enables you to remove the defined blog title from the title tag, enabling the title tag of the page to be more seo friendly. As you can see from my titles, it no longer has “cornwallseo” in the title.