They have loads of case deals of drinks at farmfoods.
24 500ml of Pepsi and Diet Pepsi £9.50 (39p each)
24 cans of coke and diet coke £7.50 or 2 for £12 so could get 48 cans for £12 (25p each)
Also 24 cases of 300ml cans including pepsi, tango, 7up, vimto and diet pepsi for £6 (25p each)
4 x 10pk of orange caprisun £7.50
8 x 2L pepsi and pepsi max 6.95 (86p each)