Work in 30-minute intervals (these are great for achieving focus too). After an interval has elapsed, get up from your desk, relax, stretch and wander around th

Work in 30-minute intervals (these are great for achieving focus too). After an interval has elapsed, get up from your desk, relax, stretch and wander around the office a bit. Don't read HN during the break. Maybe not so hip as a standing desk but it works.