In all seriousness though, I buy the 2 litre containers of milk for £1 for home because it seems like the best value for money, and then 1.5 litres of it ends up going out of date and getting poured down the drain... which is quite awful, I suppose. It only gets used for coffee. So really, I could (and probably should) pay the same £1 for a small 500ml bottle and not actually notice any difference.
We go through it like water at work but, as I said above, that's not out of my pocket so...
