If you have regular access to Internet during your trip, you can also use any of the online backup/storage solutions available. 200 GB of Dropbox or any amount of Google Drive, for example. This way, you can upload the photos as you arrive to the hotel, and then the changes you do later can be synchronized in real time with the online copy. You'll keep the images even in the worst case scenario (losing all physical copies) and in addition, somebody else can help you with the sorting/processing/publishing work at your home country.
Of course, to do this, you need a very good internet connection, not always available.