You can create a package of essential products and sell them as a bundle in your WordPress Ecommerce website. This way you can sell both individual product items separately or combine similar products offering deals with an unmissable mix of items to your customers online on your website.
There are various free plugins which you can install in your WordPress based WooCommerce website or WordPress Ecommerce system to create a bundle and assign as many simple products you want.
You may use YITH WooCommerce Product Bundles, simply install and activate it on your website to create products bundles from ‘Add New’ product page, or you may use WPC Product Bundles for WooCommerce which is coded for shop owners to create amazing deals that combine several products to put together for online sale.