Possibility to book and pay a trip with a certain mileage accrual, tell SAS that you do not want to fly the trip and receive the miles and segments even without flying.

Find ways to allow tax-free purchases to be done in departing airport and to be picked up at the airport were I land. It could save a lot of weigh/fuel.

Travel light = bring less than 8 kg. If you do so, you should be rewarded with points. If not, SAS will use the extra money you have to pay for sustainability investments.

Mount small blades on the side of the wheels to make them spin by themselves before landing to reduce tyre wear upon contact with tarmac.

Include BIO-tickets in Friends & Family campaigns.

Remove the disposable earphones in SAS Go. Offer them on request. Install Bluetooth audio so that pax can connect their own wireless headphones to the IFE system.