Vitasoy Unsweetened Long Life Oat Milk 1L $1.65 ($1.48 Sub & Save) + Delivery ($0 with Prime/ $59+ Spend) @ Amazon AU

Cheapest it has been in a while, since July. 50% off + additional 10% off with subscribe and save.

Currently on special for $2 at Woolworths, full price $3.30 at Coles. It looks like Amazon is matching IGA 1/2 price special + an additional 10% off.