I was wondering if these cards, in addition to not having foreign currency transaction fees, also guarantee the “real” exchange rate when you make a purchase (that is, the exchange rate you would see if you looked at google in the same instance you make the purchase). If not, then just “not having fees” might not be enough if they have a very bad (for us, good for them) exchange rate.

Teaching and tutoring is a very popular way to earn for international folks. You can actually earn a living if you're good at what you do and can actually find a company that pays well. If you want to know more about teaching and tutoring jobs, check out the best free tutoring work at home jobs guide. Anyway, here are a few examples of international work at home tutoring and teaching jobs.
Applicants sign up to take an evaluation for this data entry jobs company. Those who score high enough are put on a waiting list and contacted when work is available. Rates vary, usually around 40-55 cents per 1000 keystrokes. A minimum of $50 must be earned before payment is issued. Keyers input data that is encoded, so it appears nonsensical. Accepts applicants from the U.S. and outside the U.S.