nasour

This plugin disables the auto-save feature in WordPress.

Disable Autosave

This plugin disables the auto-save feature in WordPress..

crazyloong

WordPress is excellent with a great amount of features. 
But in some time, We don’t need all. So I code the plugins to disable the part of them to optimize our blog. 
If you have any question or find any bug, you can visit <a href="http://goto8848.net/projects/super-switch/" title="Super Switch" rel="nofollow ugc">Plugin Homepage</a> to submit it.
Changelog
<ul>
<li>Version 1.5:
<ul>
<li>Fixed: Upgrade to support WordPress 3.0.x.</li>
<li>Fixed: A bug when activate.</li>
</ul>
</li>
<li>Version 1.4:
<ul>
<li>Fixed: Upgrade to support WordPress 2.8.x.</li>
</ul>
</li>
<li>Version 1.3:
<ul>
<li>Added: I18n support.</li>
<li>Added: The switch for themes update checking.</li>
<li>Added: The switch for recently active plugins.</li>
<li>Fixed: Interface.</li>
<li>Fixed: The switch for core update checking.</li>
<li>Fixed: The switch for plugins update checking.</li>
</ul>
</li>
<li>Version 1.2:
<ul>
<li>Fixed: Some bugs.</li>
</ul>
</li>
<li>Version 1.1:
<ul>
<li>Fixed: Interface.</li>
<li>Fixed: The switch for plugins update.</li>
</ul>
</li>
<li>Version 1.0: First release.</li>
</ul>

Super Switch

As you see, these are a set of switches. You can optimize your blog by this.

Disable Autosave vs Super Switch