Clothing is your first Problem,if seems. Well,if you are a boy you'd better take with you as many dress as you can. You might get a headache when you buy one in the United States: if the collar fits, then the sleeves do not. It is unavoidably higher,besides. On the other hand, never carry a bunch of coats and pants along. Wearing a coat brought from home may make you feel awkward when you enter a hall full of dressed Americans. So why not wait to buy them there?