Justin Tadlock

Hybrid Hook Widgets is a plugin that creates new widget areas for the <a href="http://themehybrid.com/themes/hybrid" rel="nofollow ugc">Hybrid theme</a> and attaches them to the theme’s action hooks. Basically, it allows you to add widgets pretty much anywhere.
Typically, to add extra stuff to the theme, you must use one of Hybrid’s action hooks. This can be quite confusing to some users. This plugin was created mainly for those users without much XHTML and PHP knowledge. It allows them to take advantage of Hybrid’s advanced hook system without the need to understand how it works. Of course, even advanced users can take advantage of this, especially when dealing with client work.
This plugin is for WordPress 2.8+ only.
You must have the <a href="http://themehybrid.com/themes/hybrid" rel="nofollow ugc">Hybrid theme</a> installed to use it.
Full instructions for use can be found in the plugin’s <code>readme.html</code> file, which is included with the plugin download.

Hybrid Hook Widgets

Adds 11 new widget areas to the Hybrid WordPress theme framework using its action hooks.

Femi

To use WooCommerce hooks, you have to add your custom code to your theme’s functions.php file. 
This plugin makes it easier for you to add WooCommerce hooks, so if you don’t know your way around php, you can easily add the hooks from the dashboard.

Simple Hooks for WooCommerce

Lets you add hooks to WooCommerce without having to code it in your functions.php

Hybrid Hook Widgets vs Simple Hooks for WooCommerce