Millennials don't ring doorbells anymore — they text "here" instead.

Smartphones have replaced alarm clocks, calculators, GPS devices, and paper maps.

Millennials are also "killing" things like paper napkins and bar soap.

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The Pew Research Center categorizes millennials as those born between 1981 and 1996. They're a generation that came of age in a world defined by events such as the 9/11 terrorist attacks and the 2008 economic recession. These factors have influenced their preferences and brand loyalties, resulting in their "killing" some industries and products by choosing to spend their money elsewhere.

Millennials also grew up during the rise of the internet and its integration into everyday life via smartphones, rendering many objects obsolete.

Here are 12 everyday things that millennials don't use anymore.