This popular milk power is £8.97 in all the major supermarkets and £8.99 in Boots. It is never included in any special offers and you don't get tesco/boots points etc on baby milk.
We found it at Savers in Romford for £7.99. As anyone with a new born knows, they can get through this stuff pretty quickly so the savings really start to add up.
Savers have loads of stores across the UK. Check their website for your nearest.