Clean windows do more than brighten up a room—they improve curb appeal, let in natural light, and contribute to a healthier living and working environment. Over time, dirt, dust, pollen, smudges, as well as hard water stains can accumulate on glass, making professional or regular residential window cleaning essential. https://charliejbri60370.wikifordummies.com/9014965/window_cleaning_a_clear_view_for_homes_and_businesses