What is That Little Hole At The Bottom of a Padlock For?

Clothing once came with a color swatch. While some still do, depending on their quality and materials, few people know why. There are a few reasons. First, these swatches make it easy to color-match fabrics or threads when clothing becomes ripped or damaged. Moreover, these color swatches can be used to test how certain products, like laundry soap, will impact the item’s color. Essentially, those little swatches are a tester piece of fabric that matches the outfit, so the buyer will know how to properly care for their clothing.

Brass Padlocks and Doorknobs

Brass is known to be anti-bacterial so it’s a popular metal for doorknobs, stair railings, padlocks, or other things people touch regularly.