Workers carry a metal sheet at a dockyard in Dhaka, Bangladesh, December 5, 2018. (Photo by Mohammad Ponir Hossain/Reuters)

An Afghan boy carries his wheelbarrow in Kabul, Afghanistan, Monday, August 5, 2019. (Photo by Rafiq Maqbool/AP Photo)

Daughter of Palestinian man Ali Daba, who decided with his wife to split their children up and mark them with bracelets to help identify them, in fear of them being killed in Israeli strikes, shows her bracelet at their shelter in Khan Younis in the southern Gaza Strip on October 24, 2023. (Photo by Ibraheem Abu Mustafa/Reuters)

The founder of the UK’s only hobby horse club, Zoe Brown, watches on as members enjoy the activity on July 14, 2025. Brown began running competitions to help her own daughter, 11, feel less shame around her pastime. (Photo by South West News Service)

Several beaches along South Florida's Atlantic coast line were closed after thousands of sharks were seen migrating in the waters. The sharks were migrating from Boca Raton to Jupiter since the beginning of March, marine biologists told NBC Miami. Photo: A spinner shark swims just offshore on Midtown Beach in Palm Beach on Tuesday. (Photo by Jeffrey Langlois/Palm Beach Daily News)

Armed Syrian Turkmen villagers are seen near the northern Syrian village of Yamadi, near the Turkish-Syrian border, Syria, November 24, 2015. Turkey shot down a Russian warplane near the Syrian border on Tuesday saying it had repeatedly violated its air space, one of the most serious publicly acknowledged clashes between a NATO member country and Russia for half a century. (Photo by Reuters/Stringer)

Everyone wants to get something for nothing - whether it's a lucky upgrade that means you can turn left when you get on a plane instead or heading off into the economy seats, or even getting a few extra features thrown in for free when you buy a new car.

As some of the sharpest businesses around, no-one understands this quite as well as casinos and that's why they all have a system that they call comps. It's short for "complimentary offers" and these are special treats specially designed to reward you for your loyalty to the casino in question. They're basically bonuses.

Tourists play on the “Big” piano inside of the toy store FAO Schwarz on the last day that the store will be open in New York, July 15, 2015. FAO Schwarz will officially close the doors of its flagship Fifth Avenue toy store in New York City on Wednesday night, to the dismay of shoppers charmed by the iconic destination for childhood fun. (Photo by Lucas Jackson/Reuters)