Clean Your Indoor Faucets
Grab two old toothbrushes and secure them together with a rubber band. Dip them in water and scrub around the faucet. The narrow crevices on faucets can be tricky to clean, but with this method, it’s a breeze.
Create a Hard-Shelled Nut Cracker
Cracking nuts like walnuts, peanuts, or sunflower seeds by hand is tedious and painful. Use two old toothbrushes bound together with their bristles facing each other, and add a folded piece of paper in between. This nifty tool will make cracking open hard-shelled nuts a cinch, without the sore hands.

Clean Your Bicycle Chain
Bicycle chains often get greasy and dirty, making the bike harder to pedal and prone to faster wear and tear. Bind two old toothbrushes together with their bristles facing each other, then place the chain between them and pedal. This simple hack will have your chain sparkling in no time.
Refresh Your Computer Keyboard
Over time, your computer keyboard can accumulate dust and grime. Gently glide an old toothbrush over the keys to effortlessly remove built-up dirt without having to remove each key.
Restore Your Comb
Combs are used daily and can gather dust, dandruff, and sweat. To clean your comb, simply dip an old toothbrush in a mixture of water and cleaning solution and brush along the teeth of the comb. This will leave your comb fresh and clean.
Scrub Those Stubborn Cup Bottoms
The bottoms of cups, especially those with deep and narrow mouths, are notoriously difficult to clean. Gently heat the back of the toothbrush head over a flame and bend it to a 90-degree angle. This handy tool will reach and scrub away any stubborn stains inside cups, bottles, or jars.
Sanitize Those Tricky Toilet Corners
Toilets often have narrow, hard-to-reach crevices. Heat up the handle of an old toothbrush, bend it into an L shape, add some toilet cleaner, and gently scrub. This will ensure that every corner of your toilet is thoroughly sanitized.

Clean Refrigerator Seals and Window Frames
A bent toothbrush is also useful for cleaning the narrow gaps around refrigerator seals and window frames—areas that attract dust but are challenging to wipe down with a regular cloth.
Erase Crayon Marks from Walls
For crayon marks on walls, apply shaving cream or toothpaste to an old toothbrush and gently scrub. The marks will fade away, leaving you with a clean wall after a quick wipe with a damp cloth.
Sparkle Your Jewelry
Jewelry often has intricate details and narrow crevices that are challenging to clean. Dip an old toothbrush into a jewelry cleaning solution and gently scrub away any built-up dirt, restoring your jewelry’s sparkle.