Invite others to sign up for the function, teach her to use the peanut peanut diary software, let her know that peanut diary can be a coupon can be.

Coupons reduce the price of a product and are a common consumer business promotion tool. Coupons can be printed in magazine inserts, or clipped to newspapers to accompany them, or attached to the packaging of a product, or placed in stores for people to ask for them, or sometimes even sent out on the street to distribute them.

Coupons originated in France in the late 1820s, but they were widely used and developed in the United States.

There was a reason for this at the time, since the original definition of coupons referred to 19th-century paperwork that served both as proof of the buyer's investment in the bond and as proof of repayment of the bond to keep the expected return. They were pretty much part of the bond documentation maintained by independent investors.

Other common uses of "coupon" in the history of the place include vouchers, notes, markers, checks, etc.

In 1894, the founder of Coca-Cola hand-wrote the first coupons for promotional purposes. Due to the significant effect, coupons as a promotional tool are gradually recognized and adopted by merchants and manufacturers. There are hundreds of professional companies in the U.S. Coupon professional companies have been subdivided into media companies (specializing in issuing coupons for users), consulting companies (specializing in designing coupons for manufacturers), hardware supply companies and so on.

In 2011, each household in the United States used 300 coupons, and coupons were issued in the hundreds of billions of coupons, the popularity of which is evident.