NAme sales promotion technique , buy …

Buy-one-get-one-free deals ( BOGO) are among the most well-used promotional methods. Within business circles, they are often referred to as self-liquidating promotions because they encourage the clearing of stock. Still, rarely do buy-one-get-one-free promotions cost a business anything. They are designed to increase revenue.

BOGO deals work with more than just product-based businesses,they also work for services.

Fitness studios, spas, salons, consultants, and trainers can offer BOGO deals on their classes or trainings as a way of filling their schedules or getting new clients during the slow season. 

BOGO deal will be well worth the investment if it leads to new customers in the long run.

For example, say it costs a business 10 cents to produce a loaf of bread. If that bread is sold for two for $1, that business still makes a profit. In fact, profits soar because more bread is sold.