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How to clean Apple products

Apple also gives instructions on how to clean your Mac in the User Guides for the MBA, MBP and iMac:
Cleaning your Mac When cleaning the outside of your Mac and its components, first shut down your Mac, and then unplug the power adapter. Then use a damp, soft, lint-free cloth to clean the Mac exterior. Avoid getting moisture in any openings. Do not spray liquid directly on the computer. Do not use aerosol sprays, solvents, or abrasives that might damage the finish.

Cleaning the Mac screen To clean your Mac screen, first shut down your Mac and unplug the power adapter. Then use a soft, lint-free cloth dampened with just water and wipe the screen. Do not spray liquid directly on the screen.
Also, you'll find plenty of suggestions by searching through the many existing threads on this topic.
 
No soap, no chemicals, just a micro fibre cloth after each use to remove fingerprints....The buddies who got my iPad one and two will testify to the fact that they are pristine.

As posted by GGJ, this practice also applies to notebooks and laptops...slightly off topic, but the one real toughie to clean is my iMac....The micro fibre "Drags" on the surface of the screen, and I never seem to get a really good job done.

I've swiched to using a fine varnishing brush for dust removal...Seems to work.
 
Ostrich feather duster and a riot batten for any one who tries to finger the screen or goes to Cough anywhere near it!
These methods have worked so far.
 
I use a microfiber cloth that's originally for camera lenses, occasionally I also add few droplets of water that I carefully wipe away with the same cloth.
 
This works great, I learned this from my dad who is a service engineer in the medical field, says this is what they use.

80% water
20% alcohol
Couple of drops of soap.

Use lint free microfiber.
 
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