How to clean a screen cover?

I can't seem to clean the plastic slip that covers my iPhone screen. Any tips?

1

Wipe the plastic with a microfiber cleaning cloth. These can be found most commonly in eyeglass stores, or near sunglasses in department stores, as they will quickly remove fingerprints and residue from delicate surfaces without causing scratches.
2

Spray a mist of glass cleaner onto the microfiber cloth if the plastic has not yet been cleaned to your satisfaction. Continue wiping over the plastic.
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