Just spotted in their latest leaflet - Starting 7th Feb until the 27th February Costco have Huggies Pure Wipes on offer again :) .
Each box contains 6 packs of 72 wipes, you buy 3 boxes and pay for 2.
So in total you get 18 packs for £11.97 which works out as 66.5p per pack (or even 0.009p per wipe)
I find these wipes better than the pampers ones so pretty happy these are on offer again.
Maximum purchase 125 boxes!