Fatal Tesla crashes, email privacy tips, Wi-Fi secrets

Are you sitting on your butt all day in front of a screen? That's bad for your health, so use these tech tips to take more breaks. Also, your phone is your own meteorologist, what a free email account will cost you, how to use a QR code to give out your Wi-Fi password, say no to butter boards, 10 more fatal crashes involving Tesla's autopilot and why inflight Wi-Fi won't suck anymore.

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