I really haven't found one thing to listen to... I know I do well in silence, but really, I might just as well say "I write well in an Austrian spa" because my chances are about the same for silence.
Very often I have the tv on in the background, I try to keep it on the country music channel. I used to have the TV on all day long and I developed this really weird belief that if I turned it off, I Was Going To Miss Something Important!! Nevermind that it was always the same political blah-blah and pop-star-shaves-something crapola that it always is.
With my first book I wrote half of it alone in my living room/office while the kids were with my mother and with the music cranked. I especially listened to Pink. I don't know why, but I was practically a democrat after listening to her for so long that I had to immerse myself in some Toby Keith to get "right" again.