Qantas is currently offering 2x QFF points per AU$1 with Qantas Cash on eligible foreign currency (non-AUD) spend.
Eligible purchases exclude money orders, traveller's cheques, gambling chips, adult entertainment or purchasing foreign currencies in cash.
May be useful for those of you shopping online and paying in foreign currency.
You may get double QFF points, but you will be ripped off on the exchange rate.
You will save more money by using one of the following
Credit card - 28 degrees or Bankwest Platinum cards
Debit card - Citibank Plus transaction account