What should I use to clean my glass windows?

We recommend that you use a prepackaged vinegar-based cleaning mixture or use an ammonia-free glass cleaner such as Windex or Sparkle. You can also make your own with one part vinegar to ten parts water. Put the solution on a soft, clean microfiber cloth or paper towel. We do not suggest using glass cleaners that are ammonia- or alcohol-based because they could produce streaks or create a film that draws moisture and dust.