Years ago, I lived in Montana, a land of purple sunsets, clear streams, and snowflakes the size of silver dollars drifting through the cold air. There were no speed limits and you could legally drive drunk. My small apartment in Missoula had little privacy. In order to write, I rented an off-season fishing cabin on Rock Creek, a one-room place with a bed and a bureau. I lacked the budget for a desk. My idea was to remove a sliding door from a closet in my apartment and place it over a couple of hastily cobbled-together sawhorses.