Early on in my programming life, I had very limited access to a computer. I did much of my coding in my head while walking around. In some cases, I'd literally write code in my head and dump it out when I had computer access, but abstract and creative problem solving were especially natural in a detached setting. I truly believe this time was more valuable than the time at the keyboard.

If anything, I want to do more of that: get away from the device to let my mind wander. "Doom" coding sounds apt.