In a single day, we'll touch our smartphones 2,617 times, check email 74 times, and receive 46 notifications, research firm Dscout found. We'll spend more than three hours on our phones and tablets, 40 minutes on our home computer, and almost five hours watching TV each day, according to Nielsen.

Altogether, that means we're spending about half of our waking day looking at one of our personal devices, not counting the time we spend on screens for our job.