The best homemade window cleaning solution is usually a simple mix of distilled water + white vinegar + a little rubbing alcohol , because it cuts grease, dries fast, and helps reduce streaks. For greasy windows, a tiny drop of mild dish soap can help even more.

Easy Recipe

Mix this in a spray bottle:

  • 1 cup distilled water.
  • 1 cup white vinegar.
  • 1 cup 70% isopropyl alcohol.
  • 1 teaspoon mild dish soap, optional for extra grease cutting.

Shake gently, spray lightly, then wipe with a microfiber cloth or squeegee.

Why It Works

Vinegar helps dissolve grime and mineral film, while rubbing alcohol speeds drying so streaks are less likely. Distilled water is better than tap water because it avoids mineral spots. If you want a more gentle scent, a few drops of lemon essential oil can be added, though it is optional.

Best Use Cases

  • Everyday indoor glass: vinegar + water is usually enough.
  • Greasy kitchen windows: add a little dish soap.
  • Stubborn streaks or humid conditions: include rubbing alcohol.

Simple Tips

Use a lint-free cloth or microfiber towel, and wipe in one direction for fewer streaks. Avoid over-spraying, since too much liquid can leave residue. If your windows are very dirty, clean them once, then do a final light spray-and-wipe pass.

TL;DR: The strongest all-around homemade window cleaner is distilled water, white vinegar, and rubbing alcohol, with a tiny bit of dish soap only if needed.