I don't treat this one any differently to my old one - I just wipe away the dust with a shirt sleeve when I can't read through it. It's pretty unsettling, as my house is as dust-free as it's possible to make it, but my Kindle's screen looks like it's been left outside in a sandstorm, whether I leave it in the cover or naked, whether I'm at home, work, on the train, in a car - anywhere. It attracts dust like a magnet.