Top 10 Most Underappreciated Inventions

The end of the year is a popular time to publish lists of all sorts. Here are The Top 10 Most Underappreciated Inventions. The criteria for making this list are: 1. the invention has to be of high value, 2. we take it for granted; we just expect it to be there, and 3. it would be hard to imagine life without it; the substitute for the invention would be unacceptable.
The Top Ten
1 Eyeglasses

I would be blind!

2 Hair Color
3 Brakes
4 Smartphone

There is one main reason why smartphones are underappreciated. And that's a smartphone has always been seen as a cellular phone which has capabilities similar to a computer. The processing speed and power is similar to a computer, while it's a phone too. It was never seen as a unique invention, but a combination of cellular phone and computer.

5 Keys
6 Currency
7 Roads
8 Nails

These things changed building homes forever! Think about where we’d be without the hammer and nail.

9 Water Towers
10 Calendars
The Contenders
11 Elevators
12 Socks
13 Mini-trucks
14 The Wheel
15 Bug Spray
BAdd New Item