12. Rain shields for cars
What it is: rain shields to protect the windows of your Prius from rain and debris.
Invented in 2010; Average Cost: *$145
In Japan, window deflectors—also referred to as rain guards—are frequently seen. They prevent rain from getting on the windows and are specifically fitted to your car. In America, these specific protectors are not readily available. They cost $145 and are manufactured by Sigma Automotive specifically for the Toyota Prius.

Automotive Rain Shields: @priuschat and Pinterest
Unlike many other devices that use sticky tape to hold items in place, these guards are aerodynamic and use clips. For those who are a little picky about their cars and want to keep as much trash from reaching the windows as possible, these rain protectors are ideal.
