I have become dismayed at the local Subway stores removing the Post-Mix Coke machines which were great for pouring your own drinks and unlimited refills. It offered great value but it seems Subway wish to sell more plastic bottles to help the environment! I guess it must be cheaper for them rather than servicing the drink dispensers.
I love the taste of post-mix Coke compared to cans/bottles, and was a regular at Subway for this reason, where I would refill my Subway cup with 'no sugar' coke. I find post-mix more refreshing somehow. Stores like Hungry Jacks also once offered the same but they were the first to stop the free refills years ago. I am wondering if any Subway stores (or actually any food stores) in the Perth area still offer 'coke' post-mix and free refills?
IKEA but its not coke, but good enough. My favourite is Lingonberry.