I am always surprised how easy I can clean the glass with a simple and dry sheet of good old cotton cloth. A blowrag or handkerchief is more than enough. I have one alway in my iPad bag. First I blow a bit for getting off hard crumbles and then I swipe for five or six seconds: Clear screen like new from all viewing angles.
And once a week or so a damp cotton cloth for the backside. Don't eat spare ribs while using your iPad or iPhone.
I would avoid paper and micro fiber because those things could injure the oleophobic coating on the screen. And I don't know why exactly but I hate touching micro fiber cloth and always get stuck with it.
I would think that paper/cotton/dry towel would hurt the oleophobic coating more than a micro-fiber cloth...]
A handkerchief is also "harder" than a micro-fiber cloth. -_-
I am quite confident that micro fiber is the more "aggressive" material than soft cotton. You just need to touch it to feel that. I use micro fiber for cleaning my wooden parquet floor. Or windows (glass without coating). Works very well here. But NOT for photgraphic lenses and iPad and iPhone screens! And I would never use any kind of paper for those precious things.
I know there are harder cotton types (stiffness enriched with farina for napkins etc.) so take a soft and thin one. It's cheap and you get it everywhere.
Only Apple approved cleaning product. Okay, maybe just the only cleaning product sold at my local Apple stores.I use iKlear for both my laptop and ipad. Expensive, but it works really well.
I just use a glasses cleaning cloth that came with a pair of glasses, a micro fiber cloth I assume, if it doesn't scratch glasses then it won't scratch the iPad I hope.
If I'm wearing a clean t-shirt, sometimes, i just wipe it on my chest and stomach.
And I don't know why exactly but I hate touching micro fiber cloth because my skin and fingers always get glued to it.
Getting an iPad soon so I'm wondering.
How do you clean you're iPad?