There was a fantastic idea I saw on facebook and shared a while back (which i will be doing when i go away)
If you collect a Postcard from each location on each day and write on it what you did - then send it back to yourself,
You will then have a nice bunch of cards when you return which effectively has recorded your journey - then you can bind the cards together to make a mini trip journal,
I thought that was an amazing idea :)
I guess this also points out its not just about using tech to record your trip
as
@GSDforLife mentioned
I have found over the years that looking back at old journal experiences and remembering it as you want to can be even better than photos
I have seen alot of people do the same and have a written diary of the events of the day which they note down at the end of the day whilst its still fresh - makes it easier if you later on want to write a book :)