Best way to clean MBA screen?

Use a dry microfiber cloth and wipe it clean. Simple as that. No need to use any sort of spray products or glass cleaner.

 

A tiny bit of water helps of course too.

 

I use a lens cleaner to make it drenched, then scrub it with a microfiber. I would say it's not necessary unless you have lots of fingerprints or just OCD.

 

Just use a soft lightly damp clean cloth.

 

I use a microfiber cloth used to dry cars.

 

I use Pledge Mult-Surface and Silk Cloth I got from my BlackBerry PlayBook.

 

I just use the same cloth that I use to clean my glasses. Sort of like a microfiber rag I suppose.
Works like a charm though!

 

Here's Apple's official support document about the topic:

http://support.apple.com/kb/PH10954

Without a doubt, this topic is covered in the user's guide for your notebook.

(I know, I know, no one Reads The Fine Manual.)