I can't really understand why anyone would use local exchange except in an emergency.
Pre-loaded Citi VISA debit for ATMs and 28Degrees MC for everything else where you can't be bothered with cash. The only risk is card fraud. And falling for the "Would you like to pay in Australian dollars ?" credit card scam.
The only extra charge is the 150/180 baht in Thailand and some other countries' ATMs that sometimes levy a dollar or two (eg USA). That does tend to make you withdraw bigger amounts.
Pre-loaded Citi VISA debit for ATMs and 28Degrees MC for everything else where you can't be bothered with cash. The only risk is card fraud. And falling for the "Would you like to pay in Australian dollars ?" credit card scam.
The only extra charge is the 150/180 baht in Thailand and some other countries' ATMs that sometimes levy a dollar or two (eg USA). That does tend to make you withdraw bigger amounts.