There sometimes seems to be a war or an evolutionary struggle between device screens and screen protector makers. Back in the early days of Palm PDA's, the screens were rather soft and you used a plastic stylus to write on them. They scratched easily so most of us used and recommended screen protectors. Store bought, home-made, self-adhesive, wet film, rigid, soft… there were so many variations.
Now, screens are better but maybe even more exposed to harsh elements – and screen protectors have evolved as well.
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