And for all of you going to Oshkosh (or anywhere else in the US for that matter) here's a tip. Go to Queen Vic market or equivalent in your main city and buy a whole load of little koala bears with Aussie flags, the kind tourists buy to clip on their lapels. Cost around $5 for 20. Hand them out to anyone in the service industry you meet- check-in staff, hotel receptionists, bar staff etc etc. Americans love this and you will be amazed how they respond.(like upgrade to a suite my last time in the US)
Also great for bartering all over the Oshkosh site.