I have been using Lens Clens to clean my gear for about 15 years. Their #1 version is designed for coated optics. That is all that I use and will be the only Lens Clens product that we carry. I try to keep a bottle on my desk to clean the laptop screen, a bottle in my X-tra Hand vest for use in the field, a bottle in the Think Tank Rolling Bag that holds an amazing amount of my gear most of the time (including the time that I spend on planes), and a bottle in my laptop bag and my luggage for emergency use, i.e., when I can't find one of the other bottles (which is often).
In the field I put a few drops of Lens Clens on the absorbent cotton that I keep in my vest, clean the front element of the lens that needs cleaning, and then use a second dry piece of cotton to polish the surface. If I am cleaning the lenses inside at home, I use an old cotton undershirt. If I am in a motel I use a dirty cotton undershirt. I moisten one part of the shirt, clean the front element, and then use a dry portion of the shirt to polish it.
Now here's the best part: on rare occasion, I actually do clean the outer surfaces of my camera bodies and lenses, especially if I have abused them with dirt or mud (as I do often...) Same deal except that I put more of the Lens Clens fluid on the undershirt than I do when cleaning the front elements of the lenses. I also keep a few Q-tips in my vest. I moisten one end of a Q-tip to clean the viewfinder. Then I polish it with the dry end. Lastly I break the cotton off one end, wrap some cotton or a corner of the undershirt around the shaft, and finish polishing the viewfinder at the same time as I get into the corners. For the laptop screen its moisten the undershirt time again.
Not only is the stuff designed to be 100% safe with all the glass and all the surfaces of your gear, it will get your stuff cleaner than you have ever seen it since it came out of the box. And it dries in seconds. (Do not of course be tempted to use it on the sensor of your camera; that's what Lens Pens and Sensor Scopes are for.)
I began to investigate the possibility of adding Lens Clens to our mail order line-up as it met the two major criteria: I use it all the time and it works. The final straw was a comment by IPT veteran Myer Bornstein at Nickerson Beach after I loaned him a few drops (generous fellow that I am ; actually, a few drops is all it takes). He said something to the effect that the Lens Clens worked about a hundred times better than the stuff he had been using.
NOTE: Do not use on Plastics