What is a one thing that helps you concentrate most?

Lauren C.
Breath. Simplest meditation technique. Just focusing on my breath then switching my focus to the task, then switching back to breath. Also, if I really need to focus intensely, I slow my breath down. Similar to taking deep slow breaths but without a sigh through the mouth.

Lewis F.
A workout followed by a break. It makes it easier to transition to a work session after you work out your body. I usually do biking or some other cardio based physical exercise. Preparation is key to productivity.