I'm not sure that it is a bad habit. When you truly get stumped, the solution is often a short break or distraction. When that doesn't work, sleep on it. Whe

I'm not sure that it is a bad habit. When you truly get stumped, the solution is often a short break or distraction. When that doesn't work, sleep on it. When coding, I regularly awake with an excellent and should-have-been-obvious solution in my mind, to the last problem I couldn't solve the evening before. Just don't switch to a time-waster in the meantime.