10.Computers because everything depends on computers nowadays.
9.paper because books were made on paper,and without books we wouldn't be as smart today as we are.
8.Cell phones because we can communicate from far away distances with them.
7.Clothes because we can not go around exposing ourselves to the cold air and get sick.
6.Houses because we can not live in caves or ditches where we are exposed to animals or bacteria.
5.Beds because the floor in some houses are dirty and contain germs that can kill us.
4.Television because it helps spread the word about things like weather faster and provides us with entertainment.
3.Cars because they take us to where we need to go faster.
2.Airplanes because they take us to where we need to go faster than a car.
And the #1 Best thing ever made is..
1.Language(yes,it is an invention of some sort)because noting would be here if language wasn't invented.