To wash interior windows, use a solution of water and vinegar or mild detergent. Apply the solution with a sponge or microfiber cloth, and use a squeegee to remove excess water for a streak-free finish. Clean both sides of the window regularly to maintain their clarity and appearance, and use a commercial glass cleaner for stubborn smudges or fingerprints.

Interior windows are cleaned with water and vinegar or detergent. Scrub the window with a microfiber cloth and use a squeegee to prevent streaks. Regular cleaning helps maintain clarity, while commercial cleaners can handle tough smudges or fingerprints.