I love it when people ask serious questions and folks respond all over the map. There simply is no way to typecast all writers, is there?
Truth be told, I don't have rituals, but preferences that I try to adhere to whenever possible. I prefer to write in the mornings, in a quiet place with few distractions. I prefer black ink pens, with a point just fine enough to not be in danger of breaking, and white ruled paper.
However, if it came right down to it, I could write with a pencil in the margins of an old newspaper on a subway train next to a guy with a loud iPod. Ultimately the writing finds its way out, like sweat.