Cohoon recommends a vinegar-based cleanser, which won't damage hardware or stain curtain or drapes. Likewise, if you're going the store-bought route, try to avoid glass cleaners that are ammonia or is alcohol-based, as these may leave streaks or light films that attract more dust down the road.

A huge benefit of getting your windows professionally washed is that they will be cleaner and clearer than you can achieve by doing it yourself. Chatham Window Washing's ultra pure water window washing system, combined with their special cleaning formula, will leave your glass sparkling everytime.

Professional window cleaners use a solution made from dish soap and water to achieve a streak-free clean. The key is to use a small amount of soap and distilled water. Some professionals add ammonia to the water for increased cleaning power.

Vinegar removes film from glass surfaces and leaves windows streak-free. Use one part white vinegar to one part water. Add a squirt of washing-up liquid if windows are grubby. If windows are really dirty or greasy, add two tablespoons of household ammonia to a gallon of water and rinse with a vinegar solution.