21 Seriously Brilliant Inventions That Will Change Your Life

The exercise chair

A very comfortable paint roller

A ’jelly cloth’ for cleaning hard-to-reach places

Batteries which can be charged in a USB port

The heatable knife which can cut through cold butter


The scooter which turns into a suitcase

 The cyclist’s backpack which has a built-in safety display

A portable, solar-powered plug socket

A brilliant idea for small apartments


The exercise cycle of the future