Instead of letting your old toothbrushes take up room in a local landfill, use them around your home as much as you can. For example, you can clean your faucets, bathtub tile, shoes, stove, etc. with the bristles to get a spotless shine. Or use it for your other grooming needs such as brushing the dirt out of your nails or smoothing down your eyebrows.
Broken-down bristles can even be functional in the laundry room and garage. When you have set in stains on your clothing, spray some spot remover and work the toothbrush over the stain in small circles. If you have children, you know it’s important to get the most out of their clothing so spending ten minutes on stain removing can go along way. In the garage, the reused plastic brushes can bring the shine back to your hubcaps and tools. Or you might want to clean off work boots or other supplies that have become dusty or covered with cobwebs.
One tip is to label the different brushes so you don’t use the shoe cleaner toothbrush on your jewelry or in the kitchen. Also, be creative and consider using the brush for art activities like painting.