^^^I know you already know this and you're not clueless-- but, if your MBP has a matte display, do not spray any liquids on it to clean. Just a wipe it gently with a moist papertowel, and if you have a microfibre clothe (like the ones used to clean eyeglasses with) to wipe off any remaining moisture will do just fine.
There's absolutely no need to buy any of the specialized cleaners for your MBP (or iPad, iPhone...).
^^^I'm not a fan of these protective cases. Unless you're all thumbs, you really don't need a case. A sleeve is more ideal since scratches, bumps, etc are most prone when you're traveling with your notebook. Zagg makes this protective skin if you're the paranoid-- or all-thumbs type: