American Express Membership Rewards are one of the most valuable tools to getting free airline miles in Australia.  This month is the annual Shop Small promotion.  You can also get some great shopping deals at small businesses all over Australia – $10 rebate on a $20 or more purchase.

Register your cards here and read the T&Cs.  If you have more than one Amex – for example from NAB, ANZ, Westpac, etc then you need to register each card individually.

Then check the map to see what small businesses are participating!  In my experience, the credits post pretty quickly around a day or so.