Most of our data is held in a fuzzy uncontrollable manner. We propose a totally different solution, a new paradigm in thinking about your data. In this paradigm you know where your data is, you are in control and data losses are a thing of the past. This presentation will introduce the personal locker. A technical reference (and device) that allows you to actually own and control your data. Big data can have many benefits. But until now you had to store your data somewhere in the cloud instead of at home. This idea will show how to combine different open source software and hardware solutions to build a device which complies to regulations but where you own and control the data. Think blockchain, distributed file systems, encryption, PKI and Open mHealth.