I wouldn't exactly define myself as any type of religion, but I do believe in God (I guess some would call that Christianity, but in my book you don't have to be any type of religion to believe in God.
) and we do celebrate Christmas.
I don't go to church, either, but usually we just get together on Christmas Eve and then I get together with my parents on Christmas Day. Yeah, I believe Christmas has been "commercialized" as well.