I have long held that a good night's rest, a long shower or a walk in nature are some of the best debugging and software architecture design tools that developers have at their disposal. We've all been pulling those late nights and long hours banging our head on the desk just to figure it, only to step away and figure out what we want in that Zen like moment of the morning shower. You absolutely need to put hands on keyboard to get your work done, but generally the amount of code pounded out is (usually) inversely proportional to the amount of thought I've given to the solution.