Buying Diapers at cheap price

My colleague swears it's cheaper in The Netherlands, easily accesible either via the coast or via Liege, I've not had to make a trip myself yet, if you have friends or family driving from the UK, Multibuy offers in Boots works out at about half price compared to here.

When I was in France, I didn't find it to be much cheaper, so might not be worth the drive unless you're also stocking on drinks.