Let's face it: "Nobody cares about your code, as long as it solves your customer's problem and is shipped on time." That's why often corners are cut and prototypes are shipped directly to production. If you are lucky and your product gains traction, you might start hitting some bottlenecks and you have to pay back some tech debt. Let's explore some DynamoDB querying and modeling tips (that we learned the hard way) that will help you keep your code clean and simple, improve performance, and even reduce your AWS bill.