Make the variation dropdowns user friendly by changing “Choose an option” to use the attribute name and be more clear.
Set an upper or lower weight limit for the shopping cart and prevent checkout.
Add CSS classes to post categories to allow for styling them.
Hook and actions are the means to expand WordPress. They are *everywhere* but they are *not* scary. I promise.
Apply a free shipping coupon when the cart contains only one item.
I completed the code for a product enquiry form for a variable product using Ninja Forms.