Originally posted by LeDave ...it looks like there's nothing at all. But when I point my LED flash light at it, I can see small little dust dots which is not visible to the naked eye with natural lighting...
This is what I consider to be the point of "Clean Enough" so I don't waste my time/effort figuring out how to get them cleaner than this.
As soon as they go back in the bag or I pull them out to use them, they are dustier, and I can't see anything this small in the photographs.
There are better things to worry about, and your lens coatings will thank you for the minimized abrasion.
IMHO, of course.