Thoroughly wet the window with a cloth or sponge, making sure to loosen any dirt by going over the entire surface multiple times. Scrub stubborn spots as needed. Keep the glass wet and avoid wiping away the water.
Use the window scraper, pulling it either from top to bottom or in an S-shaped motion to remove the water.
After each stroke, wipe the rubber blade with a lint-free cloth to maintain optimal performance.
Continue working on the remaining wet areas, slightly overlapping each stroke to ensure complete coverage.
Finish by wiping the edges of the window where the scraper cannot reach. Use a lint-free cloth along the seams to catch any remaining water droplets.