In almost all of SE Asia, especially Thailand, Vietnam, Malaysia, all of the toilets come with a hand-held sprayer. They also had this in the Doha airport and I'm not sure how common this style is outside of SE Asia but I'm guessing it's common. Japanese style bidets are very common in Korean households as well and I'm sure its easily a billion dollar business. It is nice but the functionality is quite difficult for…
1 - wipe with tissue
2 - wash with water. Traditionally, use left hand.
3 - dry hand with tissue.
4 - flush
5 - wash hands at sink