For the first, I'd put a comma before please. Then again, I've been known to be profligate with my commas. I learned in the First Grade that things like "Please copy these spelling words into your notebooks" and "I would like you to take out your math workbooks" does not make the statements optional. They are just as imperative as "You'd better copy these spelling words into your notebooks, or I'm going to call your parents in for a conference to discuss why you are not doing your schoolwork, young lady." Ma explained that part to me, and I took the lesson to heart.