This is what we have to do when nappies are on special
You will see from the picture that the box gets smaller as the child gets bigger – which isnt at all helpful as its the same cost.
Its very confusing because the boxes are different sizes to what the packets are (eg the box will say 6-11kg but the packet says 4-8kg and they are basically same size nappy) but we have it all figured out now.
Maisie is toilet trained, but still wears a night nappy, so we still buy a box of 64 (13-18kg) for her when they are on special.
Alice gets the 90 (6-11kg) box and Tally gets the 72 (10-15kg) box, which take a few weeks to get thru – so we are usually able to get them at the cheapest price around from wherever they are on sale.