I have been cleaning my screens on my Tablet, eReader, cell phone, and monitors with Microfiber Clothe to keep oily fingerprints off them.
You can usually find Microfiber clothe like Microfiber Wonder Cloths ( Set of 4) for a few dollars or more in dollar stores, or online. Microfiber clothes are a lot cheaper then those disposable screen wipes, and screen cleaning kits.
They are also lint free, so you won't have lint on your screen after wiping them like tissue paper, or won't scratch your screen like paper towels which is rougher.