Innovation is key to progress, but not all inventions are created equal. Some are game-changers that transform the way we live, while others are simply frivolous or even downright useless. In the past decade, we have seen numerous inventions that have failed to live up to their hype, and instead have left us scratching our heads in disbelief. Here are the top 10 useless inventions of the decade:

1. Selfie sticks: While they may have been all the rage at one point, selfie sticks have proven to be nothing more than a passing fad. They are cumbersome and often get in the way, and the pictures they produce are usually of low quality.
2. Smartwatches: Despite the hype surrounding them, smartwatches have not caught on as much as their manufacturers had hoped. They are expensive, have poor battery life, and often offer little more than the ability to tell time and receive notifications.
3. Google Glass: Google’s smart glasses were meant to revolutionize the way we interact with technology, but they were ultimately a failure. They were too expensive, too bulky, and too awkward to wear in public.
4. Segways: Despite being around for over a decade, the Segway has never really caught on as a mainstream form of transportation. They are expensive and impractical, and are often seen as more of a novelty than a serious means of getting around.
5. Electric bikes: While electric bikes may seem like a good idea in theory, in practice they often fall short. They are expensive, heavy, and can be difficult to maintain. Additionally, they often lack the speed and power necessary to be a viable alternative to traditional bikes.
6. Smart refrigerators: While the idea of a refrigerator that can keep track of your groceries and suggest recipes may sound appealing, in reality, smart refrigerators are often more trouble than they’re worth. They are expensive, difficult to use, and often have connectivity issues.
7. Self-driving cars: While self-driving cars may be the future of transportation, they are not quite there yet. They are expensive, and there are still many safety and regulatory hurdles that need to be overcome before they can become a mainstream mode of transportation.
8. Virtual reality headsets: While virtual reality headsets may be fun to play with, they have yet to find a real-world application beyond gaming. They are expensive, cumbersome, and often cause motion sickness or other physical discomfort.
9. 3D printers: While 3D printers may have seemed like the future of manufacturing, in reality, they have not lived up to their hype. They are expensive, slow, and often produce low-quality products.
10. Hoverboards: Hoverboards may have been all the rage for a brief moment, but they quickly became known for their safety issues. They are expensive, difficult to use, and often prone to catching fire or exploding.

In conclusion, while the past decade has seen some incredible innovations, it has also seen its fair share of useless inventions. From selfie sticks to hoverboards, many of these inventions have failed to live up to their hype and have left us wondering what the point of them was in the first place. Hopefully, the next decade will bring more useful and practical inventions that will have a real impact on our lives.