WORST: Tao Chair
Here's an idea: A chair that measures how many calories you're burning, while you forcefully relax in it. The Tao Chair encourages you to grip its armrests, and strain against its firm embrace. Sensors record your exertions and display the negative calorie count on an embedded screen, or beam the data to another device via Bluetooth. Tao Wellness presented the device as a prototype, so hopefully the final version will come with sensors that also measure how many calories you're ingesting while simultaneously relax-ercising.