5OFF60
Apparently trusty ol' iHerb are having a promo over the course of this weekend.
I'm not entirely sure if this is targeted or not though your welcome to give the code a try before you pull the trigger on your next order.
Hopefully this will be of good to someone and can be combined with any loyalty credit on your existing account.
Free shipping to Australia for orders over $40 USD (approx. $54 AUD)
Happy herb hunting!