Discover the hidden cost traps in serverless computing through this 20-minute conference talk that exposes common financial pitfalls beyond the "pay-for-what-you-use" promise. Learn about unexpected expenses from cold starts, data transfer fees, and inefficient function configurations that can surprise even experienced developers. Explore battle-tested monitoring techniques to prevent billing surprises, architectural decisions that significantly reduce costs, and optimization patterns that maintain lean applications without compromising performance. Gain practical strategies for achieving predictable serverless costs while preserving application efficiency, making this essential viewing for developers seeking to master serverless cost management.