A dancer sanitizes the pole before performing on the outside patio at Cheerleaders Gentlemen's Club in Gloucester City, New Jersey, U.S. July 17, 2020. (Photo by Rachel Wisniewski/Reuters)

Two Girls who managed to evade the police walk away as police on foot and horseback push back to te curd at Park Row, In New York on April 26, 1960, A milling throng of more than 1,000 High students who storned city hall in a Demonstration supporting teachers wage demands. (Photo by AP Photo)

Saleem Bagga, seen by some as a lookalike of U.S. President-elect Donald Trump, poses for a selfie with a customer while selling kheer, a traditional South Asian rice pudding, along a road in Sahiwal, Pakistan on January 13, 2025. (Photo by Nida Meboob/Reuters)

Participants of the 79th edition of the annual Christmas swimming “Coupe de Noel” jump into the Lake Geneva, in Geneva, Switzerland, Sunday, December 17, 2017. More than 2000 men and women swam the 120 meters at the traditional Christmas swimming in Geneva where the water temperature was 6 degrees. (Photo by Martial Trezzini/EPA/EFE/Rex Features/Shutterstock)

Women demonstrate on International Women's Day as they strike to demand the end to domestic violence and the country's prevailing “macho” culture, in Milan, Italy on March 8, 2023. (Photo by Claudia Greco/Reuters)

White House Press Secretary Jen Psaki (R) is hugged by current Principal Deputy Press Secretary Karine Jean-Pierre during a press briefing in the Brady Press Briefing Room of the White House in Washington, DC, May 5, 2022, after it was announced Psaki would step down from her role next week and be replaced by Jean-Pierre. (Photo by Saul Loeb/AFP Photo)

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.

Filipinos cross a swelling river in Las Pinas city, south of Manila, Philippines, 09 July 2015. According to the Philippines State weather forecast, heavy rainfall is expected in Metro Manila and nearby provinces due to an enhanced Southwest Monsoon and Tropical Storm Linfa, Typhoon Chan-hom and Typhoon Nangka which are lining up across the Pacific Ocean. (Photo by Francis R. Malasig/EPA)