Over the weekend I have finally gotten around to do some cleaning and needed to wipe off the dust on my 27" iMac. I used a 100% cotton industrial cleaning cloth (disposable) to first wipe the layer of dust on the glass but all it did was smear the dust around. Then I decided to moisten the cloths with an alcohol solution and it helped in picking up the dust but I was left with wet streaks. To clean up the wet streaks, I took a moistened cloth to wipe an area then immediately wiped it with a dry cloth. All-in-all, this process took nearly an hour. With that, is there an easier (and preferably inexpensive) solution to cleaning the glass without having to do so much work?