Shoppers wrestle over a television as they compete to purchase retail items on “Black Friday” at an Asda superstore in Wembley, north London November 28, 2014. Britain's high streets, malls and online sites were awash with discounts on Friday as more retailers than ever embraced U.S.-style “Black Friday” promotions, seeking to kickstart trading in the key Christmas period. In the United States the Friday following the Thanksgiving Day holiday is called Black Friday because spending usually surges and indicates the point at which American retailers begin to turn a profit for the year, or go “into the black”. (Photo by Luke MacGregor/Reuters)

Friends pose for a picture on a night out in Leeds, United Kingdom after receiving their A Level results on Tuesday, August 10, 2021. Students hit the town across the country, downing cocktails and letting their hair down after two years of studying during the pandemic. (Photo by Nb press ltd)

Indian policewomen perform a stunt on their motorbikes during the full-dress rehearsal ahead of India's Independence Day celebrations in Srinagar, August 13, 2016. (Photo by Danish Ismail/Reuters)

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.

American singer-songwriter Halsey enjoys some downtime and sunshine at the Kona Village, A Rosewood Resort, in Hawaii in the last decade of November 2025. (Photo by iamhalsey/Instagram)

A group of fashionable nonagenarians pose for a photo in Pengzhou, Sichuan, China on October 12, 2016. (Photo by Rex Features/Shutterstock)

Medical workers wearing gear enter a residential area placed under the enhanced movement control order (EMCO) due to a drastic increase in the number of COVID-19 cases recorded in Sunway, outskirt of Kuala Lumpur, Malaysia, Friday, July 2, 2021. Malaysia starts to further tighten movement curbs and impose a curfew in most areas in its richest state Selangor and parts of Kuala Lumpur, where coronavirus cases remain high despite a national lockdown last month. (Photo by Vincent Thian/AP Photo)

Sophie Hawkshaw, 9, dressed as a Headless Horseman, participates in a lead rein fancy dress competition for riders under 10 years old at an agricultural show, in Athenry, Ireland on May 25, 2025. (Photo by Clodagh Kilcoyne/Reuters)