Reddit mentions of Design Go Luggage Clip Pouch, Black, One Size

I recommend this belt as to not look flashy and conceal cash.

I also recommend this internal wallet if you need more things carried like cards. This one is a little more obvious if you were to get mugged and really searched though.

Whenever possible, use a cheaper older phone if going to more dangerous places. Carry a copy of your passport, not the real thing. Also keep a small amount of cash in your shoe for absolute worst case scenario taxi home.

How extreme you go depends on your preference, but for places like South Africa for example I would do all of the above. Also obviously don't fight back at all if mugged, especially if you do the above just let your decoy wallet and cheap phone go. A second back up phone if you have one in your hotel doesn't hurt.

I don't know how to crosspost things at the moment but I'll give it a Google, that's a good idea!

And sorry, yep, should've linked it originally. Here you go: https://www.amazon.co.uk/gp/product/B000TGKRJE/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

• Use credit card with no foreign transaction fee; When we were there, we didn't had to use cash in most places. Avoid using debit card for any transaction if possible.
  
• Exchange euro from banks (if you have Chase, BoA or some others, their rates are better) than some currency exchange shop near Airports.
  
• Beware of pickpockets esp. in Rome and Southern Italy compared to North. I have been using this pouch whenever I go abroad and it's been working great!
  
• Recommended to inform your bank (Credit Card / debit cards) about your travel dates. Chase lets you do it online.
  
• Enroll in STEP https://step.state.gov/
  
• Use NFC based payments (Apple pay or Google Wallet) if supported as they are way more secure than inserting physical card.

I travel with this. Its simple. I just clip it on the waist of my pants with the wallet touching my skin. Easy access and secure.