A worker is immersed in a kaleidoscope of colour while they paint traditional umbrellas in Juwiring, Klaten, Central Java, Indonesia in December 2023. The workers who spend around 8 hours a day, depending on order quantities and customer deadlines are paid around Ј200 a month. They will paint a batch over the period of two to three days until each layer of paint is dry. Extras of the traditional umbrella will be made as many tourists come to buy them. (Photo by Lia Indriani/Solent News & Photo Agency)

Water gushes out from the Xiaolangdi Reservoir on the Yellow River during a sand-washing operation on June 20, 2012 in Luoyang, China. The sand-washing operation, which started on June 19 and will last for about 20 days, is conducted to clear out the silt deposits at the dam. (Photo by China Foto Press)

A dog rides a wave during the Surf City Surf Dog competition in Huntington Beach, California, U.S., September 25, 2016. The dogs compete in contest categories ranging from small to extra large, to two dogs on a board, as well as owner and dog. (Photo by Lucy Nicholson/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.

If you are a big Batman fan with some extra frequent flier miles and cash to burn, you might want to consider staying in this amazing Batman themed hotel room! The bat cave themed hotel room goes for $50 per 3 hour stay. For that price, you not only get to stay in the coolest hotel room of all time, but you get lubrication, s*xy lingerie and other perks. Other than the price, the other downside is that you have to fly to Kaohsiung City in Taiwan to stay there. If I am ever in that part of the world, I will definitely be staying in that room, even if I am not a huge Batman fan.

Beachgoers are hit by a wave in La Libertad May 3, 2015. El Salvador emergency authorities declared a green alert along the pacific coats due to a large swell that affected the Salvadoran coast and originated from the extra-tropical storms that formed in New Zealand and the Southern hemisphere, according to El Salvador's ministry of environment and natural resources. (Photo by Jose Cabezas/Reuters)

A man rides his bicycle as a wave crashes at La Libertad malecon on May 13, 2015. El Salvador emergency authorities has declared an orange alert along the Pacific coast due to a large swell that affected the Salvadoran coast. The swell originated from the extra-tropical storms that formed in New Zealand and the Southern hemisphere, according to El Salvador's Ministry of Environment and Natural Resources. (Photo by Jose Cabezas/Reuters)