This presentation is an introduction to the most essential of all the tools in the Office 365 suite of software (in my opinion). With an ever-growing expectation for more and more incorporation of digital materials, it becomes more and more challenging to maintain access to these materials across devices. This session is tailored for teachers new to Office 365, or looking for strategies to more effectively manage their files to allow them to work on multiple devices, and ensure all their valuable teaching materials are redundantly backed up. The session will introduce the fundamental concept of using OneDrive for storing teaching materials, best practices in file storage across multiple devices & platforms, and tips for using shared folders in a school setting.