'''Use a mild degreasing liquid dish soap''' (I like Dawn for this). PUT NO LIQUID DIRECTLY ON THE DEVICE.
# Open the display 90º and rest the display flat on a table (you may want a soft cloth between the back of the case and the table).
# Dampen a cotton cloth '''(Moist but not dripping!)'''.
# Put a dab of detergent on it.
# Work around the grease spots.
# With a clean damp cloth wipe off the detergent
# ''(May have to do this step a few times)''
# WIth a dry cotton cloth polish the screen.
''If this answer is acceptable '''please remember to return and mark it'''.''