The answer to 'why is my window greasy' is that windows can become greasy or dirty due to a buildup of residue from cooking oils, dust, and other airborne contaminants. This can happen over time, especially in kitchens or areas with high traffic. Greasy windows can make your home look dirty and unappealing.
Some common causes of greasy windows include cooking fumes, fingerprints, and even environmental pollution. The grease and grime can accumulate on the glass, creating a hazy, streaky appearance. This can be frustrating, as clean, clear windows are an important part of maintaining a tidy and welcoming home.