This plugin allows you to add an ‘Add to Cart’ button for your product on any posts or pages. This simple shopping cart plugin lets you sell products and services directly from your own WordPress site and turns your WP blog into an eCommerce site.
It also allows you to add/display the shopping cart on any post or page or sidebar easily. The shopping cart shows the user what they currently have in the cart and allows them to change quantity or remove the items. Also, this plugin can be used to accept PayPal payment for a service or a product
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