It is always a good idea to have a backup storage for your important documents and photos when travelling.  You just never know when you will need extra storage. Whether it is on a micro SD card or in the cloud. You can always store your important travel documents and images of your passport and credit cards in addition to your videos and pictures. That way if anything happens, it won’t be such a hassle, reporting them missing and getting replacements. If you are travelling with your laptop, great. You can save some of your pictures in your laptop hadrdrive. If not, you can use your phone or tablet if you have a one card reader like the U-Green All In One Reader for Android devices from out Global Store  Here is a great article by Andrea Minoia on how to back your photos when travelling without a computer for more information.

As well, as per Murphy’s Law, the SD card in your camera or phone will fail when you don’t have a backup.