Mix equal parts white vinegar and water in a spray bottle
Spray the glass thoroughly and let it sit for 5 to 10 minutes
Scrub gently with a non-scratch sponge or microfiber cloth
Rinse with clean water
Dry with a lint-free cloth or squeegee
For stubborn stains, apply undiluted white vinegar directly to the spots
Use a paste of baking soda and water on tough buildup
Rub with a soft cloth, then rinse and dry
Try lemon juice on light stains
Use a commercial hard water stain remover if needed
Repeat the process until the glass is clear
Prevent future stains by drying glass after each use
Apply a glass water repellent after cleaning