paper towels will scratch your screen, I dont care who used what. I love when people say " My grandpa smoked and drank for years and was healthy till 105". Well thats great but when your dead at 35 from lung cancer maybe you will realize grandpa was just one lucky f-er and that using paper towels will scratch your ridiculously expensive to replace high-gloss screen.
By the way alcohol is polar which is actually more important than its acidity. WATER is acid. Next time your in "insert store name here" look at the screen cleaning solutions. Water and isopropyl. Yes water will work, the isopropyl is to aid in breaking down things like say fingerprints, so you dont have to press so hard.
Look, read, learn http://www.mgchemicals.com/products/isopropyl.html