Padlocks are crucial for safeguarding belongings like bikes, toolboxes, and gates. However, their tiny hole at the bottom has a vital function. This hole allows water to escape, preventing rust and extending the padlock’s life. It can also be used for lubrication if the padlock gets stuck.
Weatherproof padlocks are available as an alternative, ensuring continuous protection. Similarly, everyday items like screwdrivers doubling as wrenches showcase hidden features. Clothing color swatches aid in color-matching and testing laundry soap impact. Brass padlocks and doorknobs utilize brass’s antibacterial properties.
Car manufacturers include gas tank indicators, while the Heinz 57 logo serves as a tapping reference. These features exemplify innovative designs for convenience.
