Who hasn't thought about which container to put a glass bottle with a plastic stopper, a paper sticker and the rest of ketchup inside? Let the residents focus on how to reduce the amount of waste they produce, not on how to sort the waste that needs to be generated. Machines will do it much faster and more efficiently. Thanks to the elimination of selective collection, we can significantly reduce the costs of collection. One container means more free space at home and simplified logistics for the collector. Therefore, let us allow everyone to focus on what is important.