The Ultimate DIY Window Spray

The most effective eco-friendly solution uses white vinegar, which contains acetic acid to dissolve mineral deposits and greasy smudges.

• The Recipe: Mix equal parts white vinegar and distilled water in a spray bottle.

• Pro Tip: Use distilled or purified water instead of tap water. Tap water contains minerals like calcium and sodium that leave unsightly marks and streaks as they dry.

• The "Secret" Ingredient: For a professional-grade shine, add 1 tablespoon of cornstarch to 2 cups of water and 1/4 cup of vinegar. The cornstarch acts as an extremely fine abrasive that helps remove stubborn film and adds a significant sparkle.