Try rolling the lemon on a hard surface with some pressure before cutting it open. This will make the lemon easier to juice. Squeeze the juice out of a lemon and place in a spray bottle with water or use a towel to apply the lemon juice to the glass. Alternatively, you can use the lemon itself on the surface of the glass. Just cut the lemon in half and rub the open area on the glass with a fair amount of pressure. Allow the lemon to soak in, then remove from the glass using water or a traditional glass cleaner.

Place several drops of the oil in water, and use a sponge or a towel to apply the solution to the glass. Allow to soak, then scrub lightly with the towel or sponge. Remove from the glass using water or a traditional glass cleaner.

Water down the toothpaste with some water so that it spreads more easily and so that you can use less toothpaste. Apply the paste to the glass and allow to sit. Scrub lightly with a brush, a towel, or a sponge. Wash the paste away from the glass with water. Clean the glass with water or a traditional glass cleaner, but be sure to dry it thoroughly so that the water spots do not re-form.

Apply the paste to the glass and allow to sit. [3] X Research source Scrub lightly with a brush, a towel, or a sponge. Wash the paste away from the glass with water. Clean the glass with water or a traditional glass cleaner, but be sure to dry it thoroughly so that the water spots do not re-form.

For extra cleaning power, use straight vinegar or a 50/50 mixture of vinegar and water to wet the glass.

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Some products suggest wiping them on and off, but not scrubbing them because scrubbing can lead to unwanted splatter. [6] X Research source It’s always best to test a small portion of the surface to be sure that a product will not damage it. Be sure to take care to keep the product only on the glass you are cleaning: the cleaner may damage adjacent walls, window sills, tile, flooring, or car paint.

Wash your hands immediately after contacting any cleaner, and never put your hands to your mouth, nose, or eyes immediately after contact with cleaners. Many cleaners suggest using in a well-ventilated area to avoid any bodily harm due to fumes from the product. Be sure to read warning labels on the product carefully.

Wipe the wet glass down with a dry towel if you see water on it. Use a squeegee to remove standing water from glass. This will keep your glass looking clean and clear. [8] X Research source