1. Learn basic strategy: Basic strategy is a set of rules that tell you the best play for each hand based on the dealer's up card. By following basic strategy, you can reduce the house edge to as low as 0.5%. There are plenty of basic strategy charts available online that you can use as a reference.

2. Avoid insurance bets: Insurance bets are offered when the dealer's up card is an ace. The insurance bet is a side bet that pays 2:1 if the dealer has a blackjack. However, the odds of the dealer having a blackjack are not in your favor, and taking insurance increases the house edge.

3. Don't chase losses: It can be tempting to try to win back your losses by increasing your bets, but this is a risky strategy. It is important to remember that each hand is independent of the last and that there are no guarantees in blackjack. Set a budget and stick to it.

4. Don't always split pairs: Splitting pairs can be a good strategy, but it is not always the best play. For example, you should never split 10s or face cards, as you already have a strong hand.

5. Take advantage of bonuses and promotions: Many casinos offer bonuses and promotions for blackjack players, such as free bets or cashback. Make sure to read the terms and conditions carefully and take advantage of any offers that can help improve your chances of winning.

6. Practice bankroll management: Managing your bankroll is important in blackjack, as it can help you avoid losing all your money in one session. Set a budget for each session and stick to it, and never bet more than you can afford to lose.

7. Pay attention to the dealer's up card: The dealer's up card can give you clues as to what the dealer may have in the hole. For example, if the dealer's up card is a 6 or lower, they are more likely to bust, so you may want to stand on a lower hand.