As an American living in Saudi Arabia, I have had to adjust to many cultural differences. Overall, I have adapted very well, but my American psyche cannot get used to the idea of not having toilet paper in the bathroom.
Don't misunderstand me, Saudi Arabian culture is very clean and concerned about personal hygiene. For example, hands, and sometimes feet and head are washed before many meals.
Perhaps because of their will for frequent washing, the Saudi Arabian alternative to toilet paper is the water jet. Those water jets which I have tested are all quite powerful and difficult for a beginner like myself to control. Besides getting one's clothes all wet, there is something unsettling in my American mind about aiming such a strong jet stream at the body's most sensitive areas.
A word to wise Western travelers - if you don't think you can handle the jet, carry your own paper.
Widowed in Saudi Arabia - Update
1 month ago