Professional cleaners universally recommend following a top-down and dry-to-wet cleaning methodology to maximize efficiency and avoid re-contaminating clean areas. The correct sequence starts with decluttering surfaces, followed by dusting high areas like ceiling fans, light fixtures, and upper shelves, and then moving downward to furniture and countertops. Next, clean mirrors and glass surfaces, vacuum or sweep floors to pick up loose debris, and finish by mopping hard surfaces and sanitizing bathrooms to ensure every room is thoroughly fresh.