Seychelles money: is it better to bring cash and exchange it, or pay by card?

For a substantial amount to exchange, US dollars are generally the better option at current rates; for a small amount, the difference versus other options may be barely noticeable.

Euros can be brought, but €500 notes were not exchanged at the exchange offices encountered and were also not accepted for payment.

One traveler asked whether it's worth bringing cash dollars to exchange locally, and whether it's true that cash isn't accepted everywhere.

It depends on exchange rate movement: if the dollar rate drops after you've already bought cash, paying by card usually works out better than cash exchange.

Double currency exchange (e.g., home currency to USD, then USD to local rupees at two different exchange points) is generally unfavorable due to double fees/spread.