For general cleaning and quick detailing I use Adam's Waterless Wash and Detail Spray. For protection, Adam's Quick Sealent and/or Americana caranuba wax is what I use. Of course I am biased on my car care products.
Never ever use a car wash with the rotating slappy washers or with the brush at the hand car wash. This will just create swirls and scratches on your finish. Use a 2-bucket wash to keep your finish looking perfect.
2008 Saturn Sky Redline