Being that it’s the middle of summer in my hemisphere, after a hard days work in the yard a nice cold frozen drink is always well received. Recently the pricing war between McDonalds, Hungry Jacks and the old-faithful 7-11 has led us to an over-supply and low prices of frozen drinks. All that’s lovely for consumers, and if you’re keenly interested in the zilch-sugar (sugar-free) options then 7-11 is the way to go (or if large amounts of sugar don’t worry you, I still think 7-11’s Slurpees have more/nicer syrups)
They offer three primary sizes, but if you actually measure the cost per volume it shows how 7-11 are making their money: they want you to upgrade to the bigger drink.
Based on the above therefore I’d suggest that if you’re REALLY thirsty, getting x2 Large drinks is the clear winner. Otherwise stick to the $1 size and save your money.
Oh yeah, and don’t drink it too quickly either…