This document discusses multi-device usage and provides strategies for developing consistent experiences across devices. It notes that by 2020 there will be over 24 billion connected devices. While laptops are often used for work, people use different devices for different purposes and contexts. There are three approaches to multi-screening: sequential, simultaneous, and separate. Designing for multiple devices requires consistency while accommodating each device's capabilities. Understanding user personas can help tailor content and experiences for different audiences. Marketers must reach people across all platforms they use. The focus should be removing constraints to center on the user experience. A case study approach is proposed to design multi-device experiences and strategies.