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Parking Spot Wall Lines

Okay, so this one isn't really a product or service, but it seems like it would be just as useful as anything else on this list. It's basically just a little bit more paint added to parking lines, so they extend up a wall. This allows drivers to see where they are inside their parking spot easily and to adjust if they need to, without having to leave their car.

www.reddit.com

Of course, this only helps if you're inside a building, such as a parking garage, but like a lot of other inventions on this list, it makes so much sense we wonder why it's not done in the U.S.