Clean the screen protector, front and back

After using a screen protector for a while, you would like to clean this protector. But how?
Most people are familiar with cleaning the front of the protector, which is the side that prevents from scratches.

What about clean the back side of the protector?

The best way to clean the protector is rinse it under warm water and use a mild soap (not dish detergent, hand soap is fine).

Once you're finished rinsing it, you want to go to place that is as dust-free as possible and dry the protector by flapping it up and down in your hand, like an old Polaroid photograph.
You never want to leave the sticky side of the protector out for a prolonged period of time because it will catch unwanted dust.
Once most of the water is off (a few specs of water here and there is OK), you can apply the protector to your electronics.

It's nice when a product can last longer!

See also:
Installation from Lexerd.