#9: Privacy Screen Protector
Those matte screen protectors that make your phone invisible from side angles. On flights, the person next to you can't read your messages. In coffee shops, nobody's glancing at your screen. At first it sounds paranoid, but then you notice how often you're typing passwords, checking bank apps, or reading something personal in public spaces. I got one after catching a guy on a plane openly watching me scroll through emails. Just sitting there reading my screen like it was entertainment. Cost about fifteen bucks and now I don't think about it anymore.
The technology is simple: the film has tiny louvers that block the view from anyone not directly in front of the screen. Your view stays clear, everyone else sees black. Side benefit is it cuts down on glare, which is nice outdoors. The screen does get slightly darker, so you might need to bump brightness up a notch, but it's worth the tradeoff. Available for basically every phone model. Brands like Ailun are popular and well-reviewed. ZAGG makes premium options if you want to spend more.
Ailun Privacy Screen Protectors on Amazon
