im posting this here because ther is no 'bag-a-bargain section and it isnt a promotion or discount code.
anyway, you can get this in Sainsbury's. only applies to 40 pack. it's likely to be hidden amid or behind the 35 pack ones (which are £5.98). you may have noticed that different supermarkets have different number of nappies in their pack. seems sainbos received some of tesco/asda's lot mixed in with their own.
this should be available nationwide, as i know people who live in london, preston and somerset who experienced the same.
will be interesting to know if any-one else gets some, and how many. i got 6 packs today (that's all there was) and friend got 4.