Use more big size bottles and not small cans/bottles

Offer obsolete products to travelers

Change your business model to focus on sustainability footprints for your «procts», do an holistic approav from a systemic and life cycle approach, make it comparable

Incentivize sustainable behavior, e.g. a small reward for bringing your own coffee cup. This can also be sold by SAS in the Eurobonus store or in flight.

Have a separate bin to put old baggage tags and recycle them. Not together with ordinary waste.

In Plus and Business on long haul - hand out amenity kits by request instead of placing them on all seats.