Visitors take pictures inside Kuala Lumpur Tower's “Sky Box”, one of the city's touristic attractions, in Kuala Lumpur, Malaysia, 05 January 2024. Malaysian Tourism Minister Tiong King Sing recently said that the tourism industry “is not just an engine for economic growth but also a bridge for cultural exchange and international friendship”. (Photo by Fazry Ismail/EPA/EFE)

A view of lava crossing the main road to Grindavík and flowing on the road leading to the Blue Lagoon, in Grindavík, Iceland, Thursday, February 8, 2024. A volcano in southwestern Iceland has erupted for the third time since December and sent jets of lava into the sky. The eruption on Thursday morning triggered the evacuation the Blue Lagoon spa which is one of the island nation’s biggest tourist attractions. (Photo by Marco Di Marco/AP Photo)

Members of Siam Classic Dance Studio perform for onlookers at Haymarket on January 21, 2023 in Sydney, Australia. The Lunar New Year or Spring Festival marks the transition of the Chinese zodiac sign from one animal to the next. 2023 sees in the Year of the Rabbit, which begins on January 22. In Chinese culture, the Rabbit is a symbol of longevity, peace and prosperity. The festival is celebrated in Australia by the country's significant Chinese-origin minority, who follow much of the same traditions as the Chinese diaspora in the rest of the world. (Photo by Lisa Maree Williams/Getty Images)

Wayne McMahon from “The Wolfhound Experience” walking alongside four Irish Wolfhounds: Connell, Mac, Brendan, and Barra, accompanied by an Irish Terrier Lady MacBeth, at St. Stephen's Green in Dublin, Ireland, on May 16, 2024. The Wolfhound Experience offers a one-hour walking tour in Dublin's St. Stephens' Green, where visitors can meet and learn about Irish Wolfhounds, the gentle giants of the canine world. (Photo by Artur Widak/NurPhoto/Rex Features/Shutterstock)

Yoga practitioners participate in yoga classes inside Times Square on the day of the summer solstice in New York City on June 20, 2024. The annual all-day outdoor yoga event, which is in its 22nd year, features classes from sun up to sun down in one of the busiest intersections of the world. (Photo by Andrew Schwartz/Splash News and Pictures)

Rescuers attend an injured fan lying on the field of the Cuscatlan stadium in San Salvador, El Salvador, Saturday, May 20, 2023. At least nine people were killed and dozens more injured when stampeding fans pushed through one of the access gates at a quarterfinal Salvadoran league soccer match between Alianza and FAS. (Photo by Milton Flores/AP 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.

The 26th annual Visa Pour l’Image, the “Cannes Film Festival” of photojournalism kicks off, filling the French city of Perpignan with more than 3,000 of the world’s best photojournalists and photo editors, along with agencies from around the world. This year’s Visa Pour l’Image showcases 26 exhibitions around the city. Photo: Christians looting a Muslim shop in the “Combattants” district of Bangui. (Photo by Pierre Terdjman/Paris Match)