People rush an injured woman to a local hospital in Peshawar, Pakistan, Monday, October 26, 2015. A powerful 7.7-magnitude earthquake in northern Afghanistan rocked cities across South Asia. Strong tremors were felt in Kabul, New Delhi and Islamabad on Monday. In the Pakistani capital, walls swayed back and forth and people poured out of office buildings in a panic, reciting verses from the Quran. (Photo by Mohammad Sajjad/AP Photo)

People ride a prototype of a driverless vehicle as it is moves through a pedestrian area in Greenwich, east London, February 11, 2015. Britain has begun testing driverless cars in four cities, launching the first official trials ahead of a series of planned rule reviews to accommodate the new technology. (Photo by Suzanne Plunkett/Reuters)

Kha Tu Ngoc rests in her two- square- meter house in Ho Chi Minh City on May 2, 2018. The “micro- house” dwellings are dotted throughout Vietnam' s bustling southern hub, occupied by families clinging to postage stamp- sized plots a city developing at breakneck pace. Tucked away in winding alleys, nestled under new condo developments or sandwiched between street food stalls and shops, the tiny houses are easily missed by the unattentive passerby. (Photo by Thanh Nguyen/AFP Photo)

A woman is cooled down with a watering can as she sunbathes using insulating tape, at a beauty center in Belo Horizonte, Brazil, on December 21, 2017. Brazilian women take advantage of the beginning of the summer to sunbathe using the new national trend: natural tanning with insulating tape. Instead of using tiny bikinis on the beach, women avoid being bothered or stalked by getting taped in the shape of them, and lay in the sun over rooftops to enjoy the morning sun and get the perfect “marquinha” tan lines. (Photo by Douglas Magno/AFP 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.

“NTV (Cyrillic: НТВ) is a Russian television channel. As a subsidiary of Vladimir Gusinsky's company Media-Most, it was a pioneer in the post-Soviet independent television media, but was later taken over by state-owned Gazprom”. – Wikipedia

Photo: A woman with “I love NTV” painted on here face cheers in support of the independent Russian NTV television station April 7, 2001 during a rally in Moscow. Thousands of people gathered in the rain to show their support for Russia's only national independent television station in its fight against new owners. (Photo by Oleg Nikishin/Newsmakers)

A humpback whale is seen at the beginning of whale watching season during a Manly Whale Watching tour on June 8, 2011 in Sydney, Australia. The first day of winter in New South Wales, June 1st, marks the start of the Humback and southern right whales migration from southern regions to the north to warmer waters. Whale watchers should expect tohave plenty to see with the whale population increasing each year. The migration north continues through July and with the whales returning between September and November. (Photo by Cameron Spencer/Getty Images)

Heavy equipment works along the still under construction Bamiyan-Yakawlang road June 10, 2011 in Yakawlang, Afghanistan. The 69 Million US$ project is supported by the Government of Japan and World Bank. The 90K road project was started three years ago and is slated to be finished within another year. This new road means faster travel from Bamiyan to Afghanistan's only national park, Band-e-Amir. This is in of the safest parts of the country and the hope is to expand tourism in the region. (Photo by Paula Bronstein/Getty Images)