In the world of smart contracts, every byte matters and every gas unit is costly. Yet, most beginner Solidity developers unknowingly write code that wastes gas by misusing one core concept Solidity’s data locations: storage, memory, and calldata. Here’s your no-fluff guide to understanding how they work and how to save gas by choosing wisely.Storage: Durable But Expensivestorage refers to data that persists on the blockchain. It’s what your smart contract keeps between transactions. But it co...