English television, radio presenter and DJ Maya Jama was alluring as Medusa at Maya Jama's annual Halloween party on October 30, 2021 in London, England. (Photo by mayajama/Instagram)

Belgian model Stella Maxwell arrives for the screening of the film “The Idol” during the 76th edition of the Cannes Film Festival in Cannes, southern France, on May 22, 2023. (Photo by Sarah Meyssonnier/Reuters)

British singer-songwriter Rita Ora has her knickers in a twist as she gets animated backstage at a music festival in Lithuania in the last decade of July 2024. (Photo by Splash News and Pictures)

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.

In this image released on September 22, American actress and singer Vanessa Hudgens attends Rihanna's Savage X Fenty Show Vol. 3 presented by Amazon Prime Video at The Westin Bonaventure Hotel & Suites in Los Angeles, California; and broadcast on September 24, 2021. (Photo by Emma McIntyre/Getty Images for Rihanna's Savage X Fenty Show Vol. 3 Presented by Amazon Prime Video)

English actress Michelle Keegan at “The Jonathan Ross Show” TV show, Series 18, Episode 7 in London, United Kingdom on December 4, 2021. (Photo by Brian J. Ritchie/Hotsauce/Rex Features/Shutterstock)

English actress and model Amy Jackson poses for photographers upon arrival at the premiere of the film “Monster” at the 76th international film festival, Cannes, southern France, Wednesday, May 17, 2023. (Photo by Vianney Le Caer/Invision/AP Photo)

A festivalgoer enjoys the weather in the circus area at the Glastonbury Festival at Worthy Farm in Somerset, United Kingdom on Thursday, June 22, 2023. (Photo by Ben Birchall/PA Images via Getty Images)