The store in Castle Towers is small, but it has everything you would need. I went in to get a small bottle of vodka. I asked the man at the counter for what I needed (the cheapest bottle), and he was quick to show me where they were located. Since I was looking for a mini bottle, I asked him about that and he got me one (Smirnoff) for $5. I was able to use the Coles group gift card that I had as well.

Approximate cost: $5