I'm keen to get an idea of what is worth buying from Oz rather than NZ. There's been a few posts from other cheapies but might be better to keep it in one forum. A couple of things I've gotten in the past are Quilton toilet paper and 400g Moccona coffee but keen on some more suggestions so I can bulk buy household items every month/quarter (with the free shipping).
Nivea roll on deodorant is at least a dollar cheaper - cheapest PAK'nSAVE price I could find was 3.89, Amazon price is 2.70 (approx 2.89 NZD).
Watties stuff (sold as Heinz) is often cheaper too.