Saw this in my local Asda (Leyton in east London) a couple of days ago. Thought someone would've posted it on here by then, do didn't bother until today when I checked and couldn't find it posted.
So my local Asda is selling 2lt Coca Cola Zero bottles (1.75lt + free 250ml) for a quid. I couldn't believe it when I saw it, too good to be true....stocked up with 12 in the trolley.
I'm hoping being Asda it's a national deal, but can't see it online. Might be worth checking your local.
Before anyone asks, this is UK made, not imported.