Was just in Sainsburys this morning. They were selling the 48 pack of Pampers Active Fit for 50p. Sizes 4 and 5 were definitely 50p, couldn't say for other sizes. Some sizes of Baby Dry were also on offer too but not as good. I couldn't say if it was just my local store getting rid of overstock, or if it's a nationwide thing, so if you're near a Sainsburys today go have a look!