🇧🇳 Brunei Darussalam for 🇨🇺 CU citizens

Brunei doesn't have a huge street-taxi culture-download the local ride-hailing app Dart. You can pay the driver in cash or top up Dart Credits in-app with a card, which is handy for airport transfers and getting around Bandar Seri Begawan.

If you're coming via Singapore, you can usually use Singapore dollars in Brunei (and Brunei dollars in Singapore) thanks to a long-running currency interchangeability agreement-great for avoiding exchange fees (notes are easiest).