Some random things I will miss about Iceland:
A national database of everyone's health records that can be called up in any physician's office! How nice would it be to go to any doctor's office in the US and they know what you're allergic to, what your immunizations are, and when you last visited. But nooo, I currently have to have immunization records sent from three different states to a new physician, so I can be cleared to attend graduate school. This is a huge waste of time and money.
Also related: universal health care. A no-brainer, it's just better.
Appreciation for artists and composers as a legitimate career unto itself. Nuf said.
Creamy delicious milk and dairy products, including the famous skyr. And I don't even really like yogurt much, but I love skyr.
The drunk pig logo of Bónus grocery stores. Drunk with savings, amiright?
Giant suspiciously-large apples that provide me with about three servings of fruit. I have big hands and this is a full handful for me.
Spontaneous choir singalongs on the street, even in four-part harmony.
Nationwide legalized gay marriage. The gay pride parade in Iceland, and Pride Week, is the biggest-attended festival in all of Iceland, all year. Something to be very proud about indeed.