If you’re checking in baggage, pay attention to the baggage drop cut-off time so that’s not missed. Getting a checked baggage tag out of the machines on time is useful or even critical when traveling with checked luggage. Not sure if they are still willing to do check in luggage on the night before departures from CPH, but that is a consideration too if you can access the CPH check-in area while it’s open the night before your trip.