Another idea: in addition to keeping scanned copies of all of one’s documents online and at home, save a copy on the laptop. That way, if internet access is not immediately available (or you have to pay to get online) all pertinent details will be easily assessable. Plus, with all the data on the laptop, one is bound to find a helpful cop/embassy official willing to let you use their printer to print out the documents.
But in the event one is transporting personal information on their laptop, make sure to encrypt the data. Because if the laptop is the thing that is stolen, the criminal would then have access to all of your data. Because of the issues with temp files, page files, etc, I recommend against using just a single file encryption product, rather, using a full disk encryption product (free options exist). Point in case, most people don’t think too much about the cookies on their laptop, but most (US) banking sites will leave cookies on computers so that the customer can more quickly login (i.e. if a valid cookie is detected, the use of an OTP is not required).