Okay, now that I've read through the entire thread, let me introduce myself:
I work for a credit union. I see a dozen people every day who overdraft their account. It stinks. I feel terribly for the people who end up having to pay excessive fees for their mistakes.
That said, it is completely an individual's responsibility to keep track of one's own account. The financial institution has no responsibility to balance your account. We have our records, and we send a statement every month. If you call with questions, we are happy to help you and let you know what your balance is, the last few transactions, whether a specific check (or checks) have cleared, etc... We will let you know if we *see* something pending in your account (we cannot always see items that are pending). If you stop in, we will print a history of your account (albeit for a small fee). Our intention is not to mislead you or fee you - at least not at credit unions, as credit unions are not for profit. Yes, we do have revenue from overdrafts, but we would much rather you were able to manage your accounts than have to deal with the yelling and crying and charges. If a transaction takes a few days to process in your account, we cannot always see that it's out there, as much as we'd like to. DO NOT rely on our balance, as there may be checks or debit transactions that haven't cleared.
****A Hint****
For those people who sometimes have a hard time remembering their debit card transactions, and hate to carry a register around with them. Wrap a rubber band around your credit card. When you are finished with a purchase, wrap the receipt around the card, rubber band it, and make it a priority to enter it into your record keeping.
In order to continue having your overdrafts covered (for a fee), you MUST OPT IN. If you do not Opt In, you are automatically opted out. We cannot provide overdraft services (or charge you) without your explicit consent. That is the point of the law.
****A Hint****
Ask your financial institution if they provide a personal line of credit that will allow your checking account to add a balance to the loan in case of an overdraft. That means that your card will not be declined, and the only 'extra' you pay is the interest that accrues. This can amount to as little as a few cents, depending on the balance of the loan and the amount of time it takes to pay it back. Let's face it; no one is perfect, and most people will make a mistake when balancing their checkbooks every once in a while. Be smart about it, and have a plan for those occasional times when someone forgets a purchase or makes a math error.
It is completely up to you whether you opt in or not, but just make sure that you are clear on all of your options. Your financial institution may have the choice of simply linking your checking account to your savings, so that any negative balance will be covered by pulling funds from your savings account. My employer offers that option; and we do NOT charge a fee to transfer this way, although Federal Regulations only allow 6 of these types of transfers every month.
OK, I am stepping off my soapbox and going back to focus on our upcoming WDW vacation!