I could send you a Win Card, John, but what your SIL really needs is a Basic Strategy card. Get any of the books on BJ strategy published in the last 25 years and cut out or photocopy the strategy card. That will do the most to minimize his losses. If he wants to move to the next step in BJ strategy, I'd recommend the book "Knockout Blackjack". Easiest system of card tracking I've come across.