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.

People are walking with umbrellas on a snow-covered street during the first snowfall of the year in Tokyo, Japan, on February 5, 2024. (Photo by Jerome Gilles/NurPhoto/Rex Features/Shutterstock)

“Spider-Man: No Way Home” costars Andrew Garfield and American actress and singer Zendaya reunite with a hug at the 2023 SAG Awards on Sunday, February 26, 2023, at the Fairmont Century Plaza in Los Angeles. (Photo by Christopher Polk/Rex Features/Shutterstock)

American actress and model Bella Thorne in the first decade of March 2023 jokes she's in “b*tch mode”. (Photo by bellathorne/Instagram)

The former UK Towie star Lauren Goodger looked sexier than ever in a lace bodysuit and baby pink suit on a night out in London last night, February 23, 2020. (Photo by Backgrid UK)

“Husky is a general term for several breeds of dogs used as sled dogs. Huskies were originally used as sled dogs in northern regions but are now also kept as pets. The word “husky” is a corruption of the derogative term “Eskie”, also given to the Esquimaux tribes that came into contact with Europeans who made early expeditions into their lands. The most common huskies are the Siberian Husky and the Alaskan Husky”. – Wikipedia

Photo: A husky looks out from his pen as competitors and teams prepare for the 27th annual Aviemore Husky Sled Dog Rally beside Loch Morlich on January 21, 2010 Aviemore, Scotland. (Photo by Jeff J Mitchell/Getty Images)

Laura and Chris Marriott pose during a press photo call with their winning carrot at 3.8kg and Beetroot at 17.840kg following judging for the giant vegetable competition at the Harrogate Autumn Flower Show on September 13, 2019 in Harrogate, England. (Photo by Ian Forsyth/Getty Images)

Activists attend a parade to demand rights of gender equality to LGBT community members in Santiago, Chile, November 25, 2017. (Photo by Ivan Alvarado/Reuters)