There are several ways to use baking soda to clean your window panes. For windows that are relatively clean, Mind Body Green recommends combining 2 teaspoons of baking soda, 1 teaspoon of Castile soap, and water (preferably distilled) in a 16-ounce bottle. Mix well and spray onto the surface. Wash from the top down, employing a zig zag motion and then from side to side. Then wipe off using a cotton towel. The solution can have vinegar or rubbing alcohol added for cleaning strength, or a bit of essential oil included for a more pleasing fragrance.
Maidfeed suggests cleaning your windows a minimum of twice a year using baking soda and a diluted white vinegar solution. This will serve the dual purpose of lifting dirt and debris while leaving a streak-free shine. Using a newspaper or cloth, wipe each window before cleaning to remove as much dirt as possible. Next, dampen a cloth or tissue, add a small amount of baking soda, and gently scrub visible dirt or smudges. Follow up by spraying a 10% white vinegar solution on the glass, then wipe clean. Immediately wiping off and drying thoroughly will prevent streaks from appearing. If dissatisfied with the spraying results, repeat the process using a sponge dipped in vinegar, wiping down the window, and finishing by using a squeegee device to remove any excess.
Source: https://www.housedigest.com/1005886/heres-how-you-can-use-baking-soda-to-clean-your-windows/