Windows, like a glass of beer or a tasteful children's painting, should never have too many fingerprints. Keep surfaces spotless with today's Groupon: for $40, you get $80 toward services from Fish Window Cleaning. Choose from the following service areas: Denver, Fort Collins, Frisco, Littleton, Broomfield, and Parker. Click the links for valid service areas in each location.

Fish Window Cleaning's fully trained, uniformed professionals travel to more than 220 locations across 40 states year round, executing services from skylight and storm-window wiping to ceiling-fan and mirror scrubbing. Remove smears and smudges with a window scrub-down ($4 average/pane of glass, pricing may vary) that includes inside and outside washing, plus a wiping of all sills, tracks, and screens. All pricing is based on estimates, and Fish Window Cleaning offers a handy online estimator to help customers determine a proper plan of action and to relieve physical calculators grown brittle with age.