A user-centric focus is important for developing any product or service, but especially for mobile websites or applications. This is because the varying screen real estate and inefficient user input allow only a limited set of features. People tend to use these mobile devices virtually everywhere (e.g. sitting in a bar, walking on the street, at home with Wi-Fi connection). In the face of this fragmentation in devices and the contexts in which they are used it makes sense to be user-centric. Unfortunately, well-established user-centered methods often go forgotten when developing for mobile due to tight budgets and fast development cycles. Luckily, many light-weight UCD techniques exist that are both easy to adapt to your development process and quick to deliver insights into your users' needs. Our presentation will introduce a number of these techniques. For example: > Quick & dirty prototyping: prototyping allows you to get early feedback from the users and other stakeholders. Paper prototyping for example works great as a start! > Informal user testing: “Test early and often” to get the most out of the gathered insights. Testing with friends, family, or colleagues is allowed! Arm yourself with some light-weight UCD techniques and achieve a great user experience for your mobile product, without breaking the bank or deadline. Join ¡La Revolución!