Having read this story tonight it crossed my mind how many people spend years of money & time on worthless inventions.
Here is my vote for useless invention of the week http://www.bbc.co.uk/news/technology-38690811
"New seat alert app for pregnant commuters"
"A new app launches in the UK on Monday aimed at helping pregnant women get seats on public transport.
Babee on Board consists of two companion apps that communicate via Bluetooth.
Once an alert is triggered, people nearby with the app receive a message saying there is someone who needs to sit down.
The app containing the alert button costs £3.99, which will be donated to a children's charity.
The developers said they were charging a fee to prevent it being used by pranksters.
"We would rather give it away for free but we need to ensure there's a barrier so people don't download it for free and troll those around them," said Hew Leith, chief executive of 10X, the British innovation consultancy behind the app."