It sounds silly, but I find juggling is a great way to get a bit of exercise in the office. Once you can juggle it's a great way to step away from a problem and

It sounds silly, but I find juggling is a great way to get a bit of exercise in the office. Once you can juggle it's a great way to step away from a problem and do something interesting but mindless for a while. After 10-15 minutes of it your arms will have had a little workout.