In the competitive landscape where budgets are limited and resources are precious, product teams can thrive by adopting lean experimentation, a strategy that emphasizes agility, efficiency, and data-driven decision-making without the need for extensive resources. Lean experimentation enables teams to quickly validate assumptions and optimize user experiences through iterative processes and the use of both qualitative and quantitative data. Real-world applications of this approach include enhancing user onboarding by employing A/B testing and tools like Appcues, engaging prospects using content management systems like Contentful for improved form submissions, and boosting monetization through strategic use of paywalls and user segmentation. Key principles for success in lean experimentation involve leveraging diverse data types, conducting rapid and straightforward experiments, and iterating strategies based on results to drive growth and improve product offerings.