SMTP Auth (by PHPMailer) is a security process that authenticates your identity with an outgoing mail server before sending emails. By providing a valid username and password, it proves you're authorized to use the service, preventing unauthorized relay and ensuring your messages from web forms, notifications, or scripts are delivered reliably through trusted providers like Gmail, SendGrid, or your hosting company's SMTP server.

Prevents multiple clicks on checkout confirmation

Allows you to designate products to show on your home page. Simply insert a Comma Separated List of Product IDs when setting up the module. It cannot get more simple.

This addon allows you to quickly set up Cross Sell based on Product ID's. There are no core code changes so you can easily install this addon.

In 10 minutes from now, you can install this addon AND set up X-Sells on a number of products.

This hook will allow you to easily create shortcode projects for easy use in info_pages.

For example, you can create a shortcode of:
[mycoolcode title="My Cool Project" products_id="123" button_class="btn-danger" text="This is an example"]

And then add a file:
includes/hooks/shop/siteWide/shortcodes/mycoolcode.php

An array of $shortcode['params'] will be passed to the mycoolcode.php file and you can code accordingly to replace the original:

[mycoolcode title="My Cool Project" products_id="123" button_class="btn-danger" text="This is an example"]

with whatever the params and your imagination can think of.

I am planning on building some cool modules that use this for integration, I thought I would share and see what others come up with.

Have Fun!