Should listening to music necessarily be considered "consuming"? I go running all the time while listening to instrumentals, and it helps me concentrate.
I too have a significant portion of my epiphanies while running or biking, or just walking away from what I was doing, staring at the ceiling, and thinking it over. Gazing into a computer screen seems to promote the narrowing down of ideas rather than the conception of new ones (if that).
Also, has anyone else found showers extraordinarily easy to concentrate in? I'm not sure what it is (white noise?), but I often find that when I take a shower my stresses fade away and whatever problem I was having folds out with an obvious-in-hindsight solution. (I also take notoriously long showers, for this reason.) I really wish I could replicate this experience somewhere else; the only other time I've had it is occasionally when falling asleep (which also, incidentally, causes me to take much too long to fall asleep — not exactly an ideal combination).