12 Breaths - A Simple Breathing Meditation Practice
I learned this breathing practice from Ashtanga teacher John Scott. I've found it very helpful since you can use it almost anywhere and it brings you right in the present moment. I also find it shows that Vinyasa "movement with breath" can be done just with moving your thumb around your hand and therefore almost everyone can do it. Its a great example that yoga is not about doing complicated asanas but just taking time to come into your breath and body.