Your laptop screen collects fingerprints, dust and grime, but you have to clean it the right way or you risk damaging the delicate coating. First, always power down and unplug the MacBook. Mix a very diluted solution of one cap white vinegar to 20oz (300mL) water, then lightly dampen a soft microfibre cloth, never the screen directly, and never spray liquid onto the display. Wipe gently in small circles to lift the smudges, then go over it with a dry microfibre cloth. Because the screen has a sp