Great video. Helped me a lot. Could you please consider to create a video about nested forms but with **Many to Many association**. Same functionality from scratch and also with coccon. Ithink something like that could solve a lot of question in stackoverflow hahaha. For example, you have address and you have your **categories** table and your **products** table. This could be a many to many association and how to add several products when you are creating a category if you have your **category_products** table. Of course you have your scaffolds for categories and products in case you want to create separate. Thanks again.