Limit Every Product to One per Order
Allows only one of each product in the cart, as if "Sold individually" were ticked on every product. Useful for licenses, courses and bookings.
Snippet Library
WooCommerce snippets for WordPress
Snippets for WooCommerce stores: change the cart and checkout, add fees and minimum orders, tweak product pages, auto-complete orders and adjust emails. For store owners and developers who want small changes without another extension.