AWS NAT Gateway Pricing: The Hidden Tax, and How to Kill It

If your AWS bill has a NAT Gateway line, you are paying twice for the same packet: once for the gateway to merely exist, and again for every gigabyte it carries. The fix for most teams is dull and free. Add an S3 and a DynamoDB gateway endpoint, route the heavy traffic away from NAT, and only then argue about anything fancier. That single change...