Stephan Spencer, of Netconcepts (SEO web agency), created a WordPress plugin called "SEO Title Tag." The plugin allows you create search engine optimized titles for WordPress blogs. The features of the plugin are:

• Allows you to override a page's or a post's title tag with a custom one defined through a custom field (title_tag).
• Allows you to define a custom home page title via the WordPress admin menu.
• Reverses the order of the blog name and the title (giving more keyword prominence to the title instead of the blog name). You can also omit the blog name or to replace it with a shorter nickname.
• For users of the UltimateTagWarrior plugin, the plugin adds the names of tags into the title on pages that have been tagged.
• Uses a category's description as the title tag on category pages.

Even though the primary purpose of the plugin is to create search engine optimized titles, the plugin doesn't actually do this for you automatically. You still have to manually create your own search engine optimized titles for your posts. So, if you have to create your own search engine optimized titles, why do you need this plugin? In most cases, you can use the title of the post as the title of your page. In these cases, you do not need the plugin. However, if you create post titles that grabs readers' attention, but the titles do not translate to good SEO, then you can use this plugin to substitute a more search engine optimized title for the page.

After playing around with the plugin, I have a couple of suggestions:

• Automated Install
  The plugin is easy to activate. However, for people who are not conformable with editing code, having them manually replace the existing title code in the header with the new code might be a little dangerous. My guess is most people will not have a problem, but there will be a few people who will either delete too much of the header or not enough. I have never created a plugin so I don't know if this is even doable, but a more automated process would be desirable.
• Option to Disable Category Description as Titles
  The plugin uses category descriptions as titles for categories. However, some bloggers (like me) are already using plugins for the META description in the header. These plugins generally use the category descriptions as the description for the post. Since I don't want to use the category description for both the title and description of the category, I would like the option of disabling this feature in the SEO Title Tag plugin.