I've found that being to write in multiple ways and places helps chase writer's block away. If you find yourself staring at a laptop, pick up a legal pad and a pencil and try that for a while. Or try dictating. Or move around. If you are not being productive at your desk, move outside, or to the sofa or into the dining room. Whatever you do, just don't sit and stare while you feel frustrated. As the old saying goes: Don't keep doing the same thing over and over and expecting the different result.