My 18-year-old daughter will be traveling to Tokyo with her Japanese class for 3 weeks this summer. The teacher will give them some advice, but I would still like to get your recommendations for things she should take--Visa debit card? Should we get her a credit card? What about a telephone? I have read that electrical appliances use the same voltage as the US, but will she need an adapter? What is the best travel guide to read? What type of clothes should she take? She will have to buy some of her own meals--what should she know? She seems to catch every virus that comes along--what types of medicine should she take with her, or will the same over-the-counter medications be available there? What else should we be asking?