Currency Exchange & Conversion
Dynamic conversion, exchange counters, local-currency choice, and the math travelers get rushed into.
Local currency is usually cleaner
When a terminal asks home currency or local currency, local currency usually lets the card network do the conversion.
Airport exchange is a convenience product
Use it only when the small arrival amount is worth the worse rate.
Know the mental anchor
A rough conversion rule keeps small purchases from becoming constant arithmetic.
Receipt totals need one check
For large purchases, check the charged currency before signing or walking away.