Felipe

You have a local installation (eg. <code>localhost/blogs</code>) and use it to develop and test all your themes. With this plugin activated, every time you switch themes the blogname option will be updated to match that theme name.

Site Renamer

Update the site name to match your current theme name. Useful for local development!

fightthecurrent

Adding shortcodes to the Visual Editor can be a pain in the buttocks. Not anymore. 
Now, you can add shortcodes and a button to the editor as simply as using an 
array and this plugin. <a href="http://bit.ly/Pvj4ie" rel="nofollow ugc">How neat is that?</a>
You can check out more details on how to use the plugin, please visit <a href="http://fightthecurrent.org/plugins/shortcodes-generator" rel="nofollow ugc">the plugin site.</a>
Note: This plugin requires at LEAST PHP 5.3. If you’re not sure what version of PHP you’re using, consult your host.
<h3>Credits</h3>
Some icons by <a href="http://p.yusukekamiyamane.com/" rel="nofollow ugc">Yusuke Kamiyamane</a>. All rights reserved. Licensed under a <a href="//creativecommons.org/licenses/by/3.0/" rel="nofollow ugc">Creative Commons Attribution 3.0 License</a>.

Shortcodes Generator

A plugin to generate shortcodes and a corresponding button in the WordPress visual editor. Wicked!

Site Renamer vs Shortcodes Generator