To wash outside windows, start by removing any loose debris from the window and frame. Use a hose to rinse off dirt. Apply a window cleaning solution with a sponge or brush, clean the window, then rinse with water. Use a squeegee to remove excess water and prevent streaks.

Outside window cleaning involves rinsing off dirt first, applying a cleaning solution, and using a squeegee to remove water. Ensure you rinse thoroughly to prevent any cleaning solution residue.