Cleaning lenses: OK so I hear that it's best to not clean your lens, but when you have to, what is your method? I blow the dust away with a Giottos duster, then if there are any smudges, I use spray some zeiss optical solution ONTO a disposable lens tissue and gently wipe the lens surface in a circular motion. Does this sound acceptable? Some claim that tissues scratch the surface and opt for the microfiber cloth...I'm wondering if this is a better route. Storing lenses: When not in use I usually store my lenses in my closet which is cool and dark with my lens cap on and upright; however, I've heard that it is better to keep it out in indirect sunlight with the lens cap on (to battle fungus). Does this sound like a good idea? I don't use any UV filters but it seems that I should use some with this method or storage.