We all need to live more sustainably. Important is that we avoid using materials that are not necessary. We have to avoid the need for new materials altogether. Easy and efficient step is to avoid unnecessary packaging, when we have lunch or drink water. Tap water is ok to drink and considering how much water we need on the go, it is crucial that we reuse our water bottles, for example. Extra tip, ask your favourite take away restaurant to pack your meal in reusable packaging which you bring yourself.