Priceline have this handy sized antiperspirant on sale for only $1.57. Available online as well as in-store (I checked 2 here in Brisbane).
Not sure if it's a secret special or a pricing error. The other "flavors" are still at $3.14 (on 50% off special) and chemist warehouse price is $4.99.
Doesn't say on the website how long this price will last.
EDIT: Sold out online. Try in-store.
Does Priceline have free shipping offer over any particular amount?