Your phone replaces 5 tools you probably still have in a drawer

Somewhere in your house you probably have a drawer that contains certain household tools such as a bubble level, document scanner, a magnifying glass and maybe some others. Here's the thing: the phone in your pocket already replaces all of them, using sensors and apps you probably didn't know were there. Here are five tools I stopped buying once I realized my phone could do the job for free.

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