
Glass Cleaner
Glass cleaner is a spray bottle household product designed to remove smudges, fingerprints, and dirt from windows, mirrors, and glass surfaces.
Estimated value as of 2023 · Source: Allied Market Research
Fun Fact
Windex, the iconic blue glass cleaner, was introduced in 1936 and its formula includes ammonia, which was originally used in 19th-century cleaners made from distilled animal urine.
Price History
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Protein Powder
Protein powder is a dietary supplement powder used for personal care and fitness, typically containing whey, casein, or plant-based proteins to support muscle building and recovery.

Snow Plowing
Snow plowing is a professional service using plow trucks to clear snow from driveways, sidewalks, and parking areas for residential and commercial properties in the United States.

Grand Piano (Steinway & Sons Model D)
Professional-grade concert grand piano with 9-foot frame.

4-Year College Degree
Average total cost of a 4-year degree at a public university (in-state).