Back when the first cell phones with touchscreens came out, people couldn't ditch their outdated flip phones fast enough. But now, when the average American spends nearly five-and-a-half hours a day ...

Flip phones' became widely popular in the late 1990s and early 2000s. Back then, opening and closing a purse and putting it in one's pocket was both convenient and stylish. Plus, they are durable. In ...