Im usually not one to post boring old ink deals, but no doubt some of you are like me and have an HP printer from several previous cashback promotions - these are very rarely on a decent special.
This in particular is for the 915 (standard 315 pages) colour inks - Magenta, Cyan Yellow which at $13.49/unit is pretty decent.
Black is also on special for $22
You can get better cost per page with the XL Cartridges that yield 825 pages as opposed to the 315 pages in the standard size.
If you pricematch this with Warehouse Stationery it will come out even cheaper.
https://www.warehousestationery.co.nz/search?q=hp%20915
https://www.pbtech.co.nz/search?sf=hp+915xl&search_type=
PBTech prices for Magenta $28.50 (comes down to $25.65 pricematched)
Cyan & Yellow $32.69 (comes down to $29.42) and Black $57.50 (down to $51.75)
You can do this via the Warehouse Stationery online chat and delivery is free over $46 which you will spend with either black or a couple of colour cartridges.