I sold a book today! My Amazon ranking went from about 1.4 million to about 0.25 million (and dropping fast--the Amazon ranking scheme is demoralizing! And yes, I check almost daily.)
My publisher is Canadian. I remember the first royalty check was for something like seventy dollars. A few days after depositing it, I got a letter from the bank saying: "Oops, we didn't notice at first but that check was in funny-money Canadian dollars--it's only $64 in 'real money.'"
Things are different now--the deposit becomes bigger in American dollars. Our weak currency rocks!