6 Kg of Vegemite

The Luck family are off to the United States for a year. I am doing an exchange with my company. There is a lot more involved in going to a place for a year than in passing through as a tourist. We have relatives who have gone over on a defense exchange. They shared their horror stories and we are thus prepared. Perhaps the best advise I can offer is to talk with someone who has just done it.
An example. You cannot get car insurance unless you have a driving history. We have gone to the Queensland Department of Transport and gotten official extracts of our driving history. This is an example of a requirement difficult to predict in advance. In a nutshell, there is little distinction made between you, resident legally under a Visa, or an illegal immigrant. From the point of view of most companies you are an alien without any US domestic history. Leasing a house, obtaining insurance, and many other things that are trivial in your home country are major issues. More on this once I get there.
We are being defensive about this. In particular we are concerned about Vegemite. For those of you (the whole world outside Australia) who have not discovered the joy of Vegemite, click [here](http://www.vegemite.com.au/). We worked out our consumption was 500 grams per month; therefore we need 6 KG to last the year. Fortunately, the supersize jar of Vegemite is 1 KG, so we only need 6 jars.
We also need to consider the few weeks we are travelling. We have a special 250 gram tube of Vegemite to get us through.