I store my camera upright resting on the bottom of the camera. In my camera bag, it is stored on its side with the right side down and the lens mount facing the bottom of the bag. My camera bag is a photo backpack stored upright at home but stored flat on the straps when I travel. All this means that my camera is always stored in a manner where dust will not collect on the sensor. I rarely have a problem with dustspots or other debris on the sensor.