Weston Ruter

Sometimes you have a certain widget configuration that you need to use over-and-over again. 
Widget Favorites provides a way to save a widget instance by name to identify it later 
when loading the favorited widget instance into another widget.
Another way to look at this plugin is that it provides (non-automatic) revisions for widgets.
Note that this only adds functionality to widgets managed in the Customizer.
Development of this plugin is done <a href="https://github.com/xwp/wp-widget-favorites" rel="nofollow ugc">on GitHub</a>. Pull requests welcome. Please see <a href="https://github.com/xwp/wp-widget-favorites/issues" rel="nofollow ugc">issues</a> reported there before going to the <a href="https://wordpress.org/support/plugin/widget-favorites" rel="ugc">plugin forum</a>.
<h3>Other Related Plugins</h3>
<ul>
<li><a href="https://wordpress.org/plugins/settings-revisions/" rel="ugc">Settings Revisions</a></li>
<li><a href="https://wordpress.org/plugins/oomph-clone-widgets/" rel="ugc">Oomph Clone Widgets</a></li>
<li><a href="https://wordpress.org/plugins/widget-alias/" rel="ugc">Widget Alias</a></li>
<li><a href="https://wordpress.org/plugins/duplicate-widget/" rel="ugc">Duplicate Widget</a> (not updated in 2+ years)</li>
</ul>

Widget Favorites

Store revisions of widget instances for re-use.

David Miller

Revision Diet is a plugin to limit the number of post revisions that are saved. It does exactly what you expect – it allows you to set a number of revisions to keep for each post and deletes any revisions beyond that number. This number will not include the autosave revisions.
The options page is extremely simple – enter the number of revisions to keep and save your options. There is also a button to ?Trim Excess Revisions.? This button will trim all the extra revisions from every post in your WordPress installation. (Using it is optional.) As for regular use, each time you save a post the oldest revisions on that post will be deleted from the database down to the limit that is currently set.

Revision Diet

Revision Diet is a plugin to limit the number of post revisions that are saved.

Widget Favorites vs Revision Diet