ASDA grocery are selling two x mega boxes of pampers for £18. They were £14 in the baby event, then down to £11 a box on ASDA direct after the baby event but have sold out.
Minimum delivery cost is £3 but you can always combine with some grocery shopping.
Available: size 4 - 126 nappies per box
size 4+ - 120 nappies per box
size 5 - 111 nappies per box