By it's nature, the blackjack double down bet is an exciting wager to place. After all, it can double your initial bet. But conversely, playing it wrongly can have dire consequences for your gambling bankroll. So it's important to understand the optimal opportunity to place this bet. You'll need to understand basic blackjack strategy in order for the double down bet to work for you. Don't do as many players do, and simply place the bet because they are only thinking of doubling their money.