title_body: What is the most efficient and safest way to remove fingerprints from my Sony PRS-650 Touchscreen Reader? I prefer to use a dry microfiber cloth to clean my touchscreen, but sometimes you have to scrub pretty hard to remove fingerprints. Is it safe to use a cleaner on the screen or should I use only water (or perhaps stick to dry cloth)?
upvoted_answer: The first thing you should always do is look in your devices manual if there is a recommended way of cleaning (or doing anything else). It is probably the best way to avoid problems with your warranty (in case something goes wrong).
  If you don't have your PRS-650 manual any more you can find it (googling sony prs 650 support)  on-line on the Manual, Specs and Warranty tab.
  There you find the PDF version of the user manual. On page 114 it says:
  
  On cleaning
  
  Clean the Reader with a soft cloth, such as a cleaning cloth for eyeglasses.
  If the Reader becomes very dirty, clean it with a soft cloth slightly moistened with
  water or a mild detergent solution.
  Do not use any type of abrasive pad, scouring powder, or solvent, such as alcohol
  or benzene, as it may mar the finish of the case.
  Clean the headphone plug periodically.
  Tapping or dragging on the touch screen using a dirty stylus may damage the surface. Wipe the stylus with a dry cloth when it gets dirty.