And when you travel, duplicate debit cards! I just opened a second free checking account at my bank to do this. Keep one in your carry-on/​hotel room, and one when you go out on excursions. So if you get pick pocketed or the ATM refuses to return your card, you have a spare.
This also lets you use cash for all your transactions—so the only way you can be skimmed is at the ATM, nowhere else.
Duplicate IDs are hard to come by. However, you might be able to have multiple different forms of ID (such as an ID card and a passport).
Backup citizenship! There were some posts about it here I think.
And when you travel, duplicate debit cards! I just opened a second free checking account at my bank to do this. Keep one in your carry-on/​hotel room, and one when you go out on excursions. So if you get pick pocketed or the ATM refuses to return your card, you have a spare.
This also lets you use cash for all your transactions—so the only way you can be skimmed is at the ATM, nowhere else.