next is a smartphone case and screen protector so one of the worst things about cell phones is when your screen shatters when it cracks cuz you drop it or hit it against something so when you have to replace a screen it's a pain because it can be really expensive so some can cost close to $300 to replace so that's why it's a great idea to invest in a good quality phone case and a shatterproof screen protectors and these can range anywhere from $17 to $65 but by buying these it could save you $220 to repair a cracked phone screen.