So I shelled out lots of $ on my D70s and I want to make sure I treat it will the respect it deserves. When it comes to my toys, I am very careful and like to take very good care to make sure everything remains in optimum working condition. What I need to know is what is the best way to clean my lens. I have a little blower brush, a lens cloth, and some lens cleaning fluid (which I think I understand is basically water with just a little rubbing alcohol?). What I have been doing is first using the brush to get rid on any dust or anything else on the surface. I think put a drop of fluid in the center of the lens and use the cloth to wipe it around in a circular pattern. I then take a dry part of the cloth and wipe it dry in a circular pattern as well. Is this the best way to do it or should I be doing something different?