Top 15 Best-Selling Products We’ve Been Using Wrong This Whole Time

9. A penny

U.S. Mint is the best place to purchase. The average product cost is $0.01. A penny (or another coin, if the screw is particularly huge) might be able to help if you have a small screw that needs to be undone. Insert a penny's edge into the longest groove on the screw head. Turn the screw counter-clockwise after that. This should release the screw; however, keep in mind that this technique is only effective for large screws—not microscopic ones.

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Pinterest/@balconygardenwe/Penny As Screwdriver Is Penny failing at her trick? Another couple of options are an old CD, a butter knife, or even a hacksaw. If you can use them properly, scissors may even be able to save your skin.

10. The Padlock Hole

The best place to buy is any home goods store. Product Price on Average: $5+* Padlocks can be used for a variety of purposes, such as securing your yard gate and keeping your bike safe from theft. It's likely that you've noticed a tiny hole in the lock's base, no matter how you use it.

Shutterstock ©siro46/Padlock Hole That hole is more than just a production error. The aperture lets water escape during cold weather, keeping the internal mechanism from being ruined by rust. Therefore, even though it has a modest appearance, this small hole is most likely the most significant component overall.