Kellogs is offering a coupon for $3 off of any Special K product (e.g. cereal, snack bars etc.). This coupon was in the NZ Herald & The Press (15/4 & 16/4).
Printable Coupon
The coupon just needs to be printed out and presented to any Countdown, PAK N SAVE or New World Supermarket. You can use 1 coupon per product so potentially you can stock up when the sales are going on.
Note it also says copies are not acceptable. However, PressDisplay is a system that many subscribe to (free/paid) to read their newspapers so I wouldn't consider this a copy. If there is a question about this coupon, make sure to mention this. You need to print via this link or just find today's paper.
Looking at Countdown:
Kelloggs Special K Muesli Bars B/moments & Strawberry 125g 6pk $4 - $3 coupon = $1/box
Kelloggs Special K Cereal 535g (Largest Size) $7 - $3 = $4
No rush on using the coupon so perhaps wait for them to be on special.
Cheers bro, just used it, worked fine.