Have you ever put money in a bank in a different country?
I live in the US, where investment (CD, money market, savings) rates are so abysmally low right now that there is no incentive to put money into them. I opened a savings account a while ago, and was subsequently hit with a service charge on it that wiped out all the interest I would have earned on it over the next 20-30 years.
I was reminded a while ago that savings accounts in Australia are paying something like 5-6% interest. Obviously investing on the other side of the world means that accessing the money would be pretty slow, but what other concerns should one have? I'm not looking to cheat the government out of taxes or anything, just looking to actually make a little money with minimal risk.