UPDATE: Fixed my error calculating the saving!
It’s not just Australia Post who’s offering a 20% off deal. Starting this Thursday, you can get the same deal at Target.
From Thursday 29th of March until Tuesday 3rd of April, you can get 2 x $30 iTunes cards for $50. This is a saving of 16.666%.
Thanks to Neil who sent this one in.
[Source: Target, page 16]
Other known gift card deals:
[20%] Australia Post – 2 x $30 iTunes cards for $50 – ends 8/4