One thing I will certainly miss about Australia is the serving sizes of food. Everything is smaller here, and doesn't encourage you to be gluttonous. It's always just the right amount I need. A standard small coffee is 8 ounces, which for all you Starbucks fanatics is equal to a short. I worked at Starbucks for 2 and a half years and always viewed the short as not enough coffee; after living in Australia for a year I now view it as just the right amount. And I'm now convinced that the venti size should only be drunk by giants :)

Another thing I will definitely miss is the hospitality of Aussies. I always thought that I was a hospitable person, even been told by others that I am, but experiencing Aussie hospitality made me change my definition of the word altogether. We were having such trouble finding housing when we first got to Australia. A family from our team leaders church told them that we could stay with them as long as we needed, and they meant it. We ended up staying with them for a full month, where they housed us and feed us pretty much every night. We had never met these people before and they completely opened their home to us. And the more I got to know Aussies over the year, the more I became convinced that that amount of hospitality is the norm, not the exception.
One completely superficial thing I will miss is a TV show called Masterchef. I don't watch a whole lot of TV, but I became thoroughly addicted to this show. It's a cooking competition , but all the competitors are amateur cooks and have never had any proper training. I think I love the show so much because you get to see the competitors progress in their skills and talent as the show goes on, and because the judges are critical, but it's constructive criticism that the competitors can learn from, not criticism to tear them down, as we so often see in American shows. My absolute favorite was right before we left they had Junior Masterchef, so all the competitors were between the ages of 8 and 12. These kids were absolutely amazing!!