if you could invent something what would it be and how would it change your life

There is lots of amazing things that havent been invented yet that could change lives everywhere. Something i would like to invent is a hair straitening brush. This hair straitening brush would have many talents. It would save time, save money, and be a much faster process.

There are lots...

Even better would be:
Lots of amazing things that are waiting to be invented, things yet that could change lives everywhere. Something i would like to invent is a hair straitening brush. This hair straitening brush would have many talents functions.

Lets see some more! Compare it to other inventions, and tell about how it would work. Be funny as you explain the problems it will solve.