Google just released a simple but potentially very helpful technology: Google Now, an intelligent personal assistant similar to Siri of Apple, records where you park once you get out of the car and reminds you where it is when you get back.

Since its launch in 2012, Google Now has been Siri's biggest competitor. With many reviews on which personal voice assistant is more helpful than the other, any new feature can push one ahead of the other.

Until now we've had the choice to "drop a pin" on maps, write down where we parked, or take a photo of the parking location. But Google has now simplified and eliminated all those steps with its new feature.

The Google Now assistant tracks when a moving car stops and the passenger gets out, and it records the last location of the car. According to Google's help page, "When the card shows up in Google Now, you'll see an indicator showing the approximate location of your car."

Ever lost your car in a parking lot? We all have. Whether you're parking in a new location or on the same street you park on every day, it's easy to forget where you parked your car. And until now, wandering in the parking lot or on the street in search of your car was about the best strategy you could follow when looking for it.

But with Google Now's new feature, all you have to do is make sure your phone is updated and parking location cards are turned on. Google Now even keeps a record of your previous parked locations.

But as you may guess, the first attempt at any new technology may not be the most accurate.

"You may see parking location cards even if you didn't park your car," says Google about the new phone feature. "For example, these cards could show up after you exit a bus or a friend's car."

This is because the technology behind this new feature is quite simple and has basically been there all along. All Google does is use your smartphone's sensors to recognize when you've exited the car.