Just to get back to the storage of lenses....you can get too precious with all of this. They are not Faberge eggs....they are tools and quite at their happiest when they are out in the field, the rain , the snow, the streets and the city. I don't think most of you are aware of just how rugged a good quality Nikkor or Canon lens is. Photojournalists the world over are subjecting their lenses to some pretty harsh environments without having the lenses fail. I've known award winning newspaper photographers who literally throw their cameras and lenses into the back of the car with the greatest of disrespect. I keep my lenses, and I have about 9 of them, wherever I leave them. On the carpet under the desk, on a table, in a bag, in a drawer....the idea of buying a humidty controlled cabinet seems ludercrous to me unless you live in the tropics like, say , Sumatra. Most
modern lenses are well sealed against the ingress of moisture and I don't think I have ever seen a
modern Nikkor or Canon with a mould problem, although this was common with pre 1960 lenses that were not so well sealed. To maintain your lenses in good condition, (and I think it has been said here elsewhere),
1.Protect them from breakage/ drop onto concrete etc
2. Don't drop them into the sea
3. If they get wet in the rain then don't put them back into your camera bag until they dry off
4. Occassionly give them a dust down with a small clean paintbrush
5.Keep a UV or skylight filter on the lens for extra protection of the front element...but do take it off for critical sharpness or studio work or when you want to use atmospheric or aerial perspective as an element of your image.
By the way...the biggest threat to your precious lens is....dah dah.....theft. Don't leave it unattended on the back seat of your car or in an unattended camera bag on the ground whilst you are engrossed in photographing some subject that has caught your eye. Enjoy your lens, put it to work, discover its sweet spot and take photographs .Use the humidifier for your Cuban cigars.