So far, so good. I haven't had one.
Every time I go to an ATM lately, my dollars are worth fewer pesos. Getting toward the end of the month, the balance may be getting low and I need some cash. I do a balance inquiry and it shows a balance of 3435 pesos. My bank charges only a 1% foreign transaction fee and no foreign ATM fee at BBVA Bancomer. Figure I can take 99% of 3435 or 3400.65. It would make sense to take out only 3300 and leave 100.65 in the account since 100 pesos is the smallest note the ATM dispenses. But suppose I do take 3400 without thinking, is 65 centavos ($0.11) enough to prevent an overdraft?
I realize this is probably the least of my worries, but it just happened to cross my mind at the moment.