Product bundles

A product bundle option that let's you select one or more products that belong in a bundle.

• The bundle could be offered as a bundle of products. It would be clear from the product page you're buying a bundle of items.
• Alternatively, there could be another option: when a customer adds product A to their cart, product B is automatically added as well. There should probably be an option to prevent a customer from removing the bundle product from their cart.

Personally I'm most looking forward to the latter option.