You can send your journey to your mobile phone as a SMS, so you will always have your journey with you on your mobile phone. When you have decided, which journey you prefer, you press the SMS tab and type in your mobile phone number and click "Send".
In short time you will get a SMS with your preferred journey (remember to type in your country code for foreign mobile phone numbers).
The SMS from Rejseplanen is free of charge, but you can only use this service for 3 journeys per day.