jevets

Outputs a clearing <div>. You may configure the CSS class and height and disable inline style output. Useful when you want to ensure that a widget clears its predecessor where the predecessor’s contents are dynamic.
Simply activate the plugin and visit Appearance > Widgets to use. You may choose to disable the inline style output (if your CSS already has a clear rule). You may also specify height and the CSS class of the clear block. If not specified, the defaults are used:
<ul>
<li>Height: 0</li>
<li>Class: ‘clear’</li>
</ul>
Example output (default):
<pre><code><div class="clear" style="clear:both; height:0; visibility: hidden"></div>
</code></pre>

Clear Widget

mdjekic

Are you using the WP default RSS widget to display a feed on your personal page 
or blog? Did the damn thing cache a feed (or several feeds) and refreshing the 
page and browser cache doesn’t work? Here is the solution…
Visit the <a href="http://milos.djekic.net" rel="nofollow ugc">author’s blog</a> to stay in touch and don’t 
miss <a href="wordpress.org/extend/plugins/synchi/" rel="nofollow ugc">Synchi plugin</a> – a full IDE inside 
your WordPress.
Install this simple plugin and run the Clear RSS Cache action from your Apperance 
menu whenever you want to fix this most anoying issue on your blog. Enjoy!

WP Clear RSS Cache

A simple WP action to clear the RSS widget cashe.

Clear Widget vs WP Clear RSS Cache