In my JLPT practice book, there is a question that asks you to put words in the correct order: 朝の満員電車の中で、大きな音で ____ ____ ____ ____ 若者がいる。 What I put down was: 朝の満員電車の中で、大きな音で ...
In the textbook Japanese for Busy People I, the order of the elements in a sentence is always the same (subject - when - with whom - by what means - to where - verb) at least as far as I have made it. ...
Sometimes, for stylistic or rhetorical effect, one wants to delay mentioning a word/concept until the end of a sentence. For example, it's often best to save the punchline for the very end: I was ...