Door-to-door sales have been used by various industries for decades, but their effectiveness has changed over time due to advancements in technology and shifts in consumer behavior. Traditionally, door-to-door sales involved selling products like cleaning supplies, encyclopedias, and home appliances. However, with the rise of e-commerce and digital marketing, this approach has become less common in some sectors.

While door-to-door sales have their advantages, such as providing a personal touch and immediate customer feedback, they also face challenges like rejection, privacy concerns, and regulations in some regions. As a result, many companies have shifted their sales and marketing strategies to more digital and online methods.