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In probability theory, the coupon collector's problem refers to mathematical analysis of "collect all coupons and win" contests. It asks the following question: If each box of a brand of cereals contains a coupon, and there are n different types of coupons, what is the probability that more than t boxes need to be bought to collect all n coupons?
Sites like Cashback Monitor and Evreward aggregate savings, rewards and coupons to help you compare earning rates across shopping portals and cashback apps.
In marketing, a coupon is a ticket or document that can be redeemed for a financial discount or rebate when purchasing a product. Customarily, coupons are issued by manufacturers of consumer packaged goods or by retailers, to be used in retail stores as a part of sales promotions. They are often widely distributed through mail, coupon envelopes ...
The extreme couponing fad may be over. In recent years, many stores have changed their policies, making it harder to pay $40 for a $300 grocery bill, and TLC's "Extreme Couponing" hasn't aired an ...
Groupon offers a mobile application which allows users to browse, buy deals, and redeem them using the screen as a coupon.
Planning ahead with coupons and checking around for sales can make a major difference. Looking through store flyers and online can help you get a good deal and save money.