British comedian and director Charles Chaplin (1889–1977) and actress Paulette Goddard (1911–1990), to whom he was married for seven years, star in the comedy “Modern Times”, directed by Chaplin himself. (Photo by Hulton Archive/Getty Images). 1936

Aerialists Luka Owen and Daniel Connor perform with a Fork Lift Truck to mark the handover of the former Daimler Car Factory to Imagineer by the Wigley Group on April 14, 2021 in Coventry, England. The building will include a sound recording studio and edit suite, as well as a Sprung Dance Floor and Vertical Dance Wall. As well as providing a home for Imagineer’s innovative education and training programmes aimed at young people and people with disabilities. (Photo by Darren Staples/Getty Images)

A helicopter pours water over a wildfire with the Space Shuttle Endeavour seen through heavy smoke in the background April 27, 2011 in Cape Canaveral, Florida. (Photo by Roberto Gonzalez/Getty Images)

Jesse Larios, 33, from Los Angeles, wears a bear suit while walking along Hollister Road in Gilroy, California, U.S., April 21, 2021. Larios, also known as Bear Sun on social media, is walking from his home in Los Angeles to San Francisco while wearing the bear suit as a social media fundraising event. (Photo by Brittany Hosea-Small/Reuters)

Meet the star students of orangutan school – the unique rehab centre where orphaned apes are taught how to climb trees and survive in the wild without their mum and dad. (Photo by Caters News)

Kacey Musgraves and Gigi Hadid attend the 53nd annual CMA Awards at Bridgestone Arena on November 13, 2019 in Nashville, Tennessee. (Photo by Charles Pulliam/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.

A lizard is seen hunting for fish during the daytime on May 04, 2017 in West Sumatra, Indonesia. (Photo by Riau Images/Barcroft Images)