Whatever I donate in Oz dollars is worth roughly half that number in US dollars, so I always feel a bit ripped off... "Hey, Brad - here's twenty bucks! Uh... sorry, ten bucks..."
Seriously, send what you can, even if is only two dollars. Every little bit helps.
Also, you could set aside one/two/five dollars a month in a piggy bank or something, and give six/twelve/thirty bucks twice a year...
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