Scan a copy of your passport, any visas, and any debit/credit cards you’re traveling with. Password protect the documents, and email a copy of them to yourself and to a family member . If everything you own gets stolen, you can access them safely from your email account, take your copies to your embassy as proof that you’re who you say you are. Plus, you’ll be able to buy flights home and pay for accommodation with your debit cards to keep travelling/go home in an emergency.