Ben Huson

This plugin displays cross sales in WP e-Commerce. It provides the same functionality as in earlier versions of WP e-Commerce plus a little bit more.
Doesn’t do anything yet but will replace the current WP e-Commerce ‘also bought’ functionality in version 3.9+
New features include:
<ul>
<li>Option to set cross sale image sizes.</li>
<li>Remove hardcoded styling so it’s easier to style via css.</li>
<li>Improved code structure.</li>
</ul>
PS: You’ll obviously need WP e-Commerce installed for this to do anything 😉

WP e-Commerce Cross Sales (Also Bought)

This plugin displays cross sales in WP e-Commerce. It provides the same functionality as in earlier versions of WP e-Commerce plus a little bit more.

Fahad Mahmood

Invoicepress

<ul>
<li>Author: <a href="https://www.androidbubbles.com/contact" rel="nofollow ugc">Fahad Mahmood</a></li>
<li>Project URI: <a href="http://androidbubble.com/blog/wordpress/plugins/wp-quick-shop" rel="nofollow ugc">http://androidbubble.com/blog/wordpress/plugins/wp-quick-shop</a></li>
<li>Free Version: <a href="http://demo.androidbubble.com/wp-quick-shop" rel="nofollow ugc">http://demo.androidbubble.com/wp-quick-shop</a></li>
<li>Premium Version: <a href="http://demo.ibulb.work/wp-quick-shop" rel="nofollow ugc">http://demo.ibulb.work/wp-quick-shop</a></li>
<li>License: GPL 3. See License below for copyright jots and titles.</li>
</ul>
WP Quick Shop is a WooCommerce compatible plugin which enables you to setup a one-page shop for items to sell in bulk. You can add notes for each order item with custom field. WP Quick Shop can be implemented with just a shortcode. Create a page and paste shortcode. On Quick Shop page you can set quantity of items and use add to cart feature instantly. Every item is provided with a button to buy that item individually. Custom field will be saved with order details. Select Custom Field tab and enabled it. You can set custom field type like textarea, text and number. Column heading, field placeholder, tooltip and max length of field can be managed as well. Some styles are available for free and you can add your custom styles as well. Bootstrap is a premium feature as it will involve some complications with your theme templates and you might will require support from us later.
Quick Implementation: 
<iframe loading="lazy" class="youtube-player" width="750" height="422" src="https://www.youtube.com/embed/Jft94_xHrvU?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en-US&autohide=2&wmode=transparent" allowfullscreen="true" style="border:0;" sandbox="allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox"></iframe>
Important!
Visit my blog and suggest good features which you want to see in this plugin.
<h3>License</h3>
This WordPress Plugin is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 2 of the License, or any later version. This free software is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this software. If not, see http://www.gnu.org/licenses/gpl-2.0.html.

WP Quick Shop

WooCommerce & WP eCommerce compatibility offered in initial version. Soon more plugins will be tested and will be offered in compatibility list in addition with new features.

Multiple shopping cart plugins can be used together

WP Quick Shop is a great plugin to order multiple products together without searching and spending time on pagination.

WP e-Commerce Cross Sales (Also Bought) vs WP Quick Shop