[Penny]

So at Woolworths, you can buy a 600ml bottle of coke for $2.22, a 1.5 ltr for $1.33 on special or $2.0 normal price, and 2.25 ltr for $2.63.

So I spose you can work out which is cheapest and best value for money, or you can just not put so much thought into it to save 20cents and just get what you need.